Priority Claim Practice: Running Paris Convention Deadlines From and Into Nepal
Priority claim practice for Nepal filers: the 6- and 12-month Paris windows, outward and inward filing sequences, PCT timing, and the documents each claim needs.
One filing somewhere starts a countdown everywhere. The Paris Convention priority right lets a later filing in another member country carry the first filing's date — six months for trademarks and designs, twelve for patents — and almost every cross-border IP strategy from or into Nepal is organised around those windows.
Priority claim practice is less about the treaty and more about the calendar: who files first, what documents travel, and what happens to the claim when a window is missed (nothing — it is gone).
In short
Priority claim practice turns treaty windows into filing sequences: the first application anywhere in a Paris Convention country starts a 6-month clock for trademarks and designs and a 12-month clock for patents, and later filings claiming that date must land inside the window with certified priority documents. Nepal, a Paris Convention and PCT member, sits on both sides — Nepali brands filing outward into India and beyond, and foreign brands filing inward through the DOI's national route, since Madrid does not cover Nepal.
Priority claim practice starts from the first filing
The mechanism is short. An applicant files in one Paris Convention country; within the window, the same applicant may file in other member countries for the same subject matter and claim the first filing's date as the priority date. For conflicts, the later filing is treated as made on the earlier day — the decisive fact in every first-to-file register, Nepal's included.
Two properties shape the practice. The claim runs from the first application, not its registration — no one waits for a certificate at home. And the window is unconditional: six calendar months, twelve calendar months, no extensions, no cure.
The windows, right by right
| Right | Window | What ends it |
|---|---|---|
| Trademarks | 6 months | Filing abroad later than 6 months loses the earlier date |
| Industrial designs | 6 months | Same hard boundary |
| Patents | 12 months | Direct filings beyond 12 months file on their own date; the PCT route is the structured alternative |
Filing outward: the Nepali brand going abroad
The sequence for a Nepali business expanding into India and beyond runs through the DOI first. The home application is filed at the Department of Industry; within six months for trademarks, the foreign applications claim that date. India — the first foreign stop for most Nepali brands — is a Paris Convention member, and the priority claim travels with a certified copy of the Nepal filing and whatever translations the destination office requires.
The document flow reverses the familiar direction: Nepali company papers, the DOI filing receipt and certificates move outward, and the destination country's legalisation or notarisation rules decide the preparation time. Filing the home application is therefore the trigger for a document-production schedule, not just a protection date.
Filing inward: foreign brands into Nepal
The inbound sequence has Nepal-specific furniture. Nepal is not a Madrid Protocol member, so international registrations designate nothing here — protection requires a national filing at the DOI through a local agent, one class per application. A foreign applicant claiming priority declares the home filing in the Nepal application and supports it with a certified priority document, translated into Nepali where required. The agent's Power of Attorney travels its own road: Nepal sits outside the Apostille Convention, so foreign documents take the consular legalisation route — a two-to-six-week chain that should start the week the home filing is made.
Patents and the PCT alternative
For inventions, the twelve-month Paris window competes with a better-structured route: Nepal is a PCT member, so a first filing can grow into an international PCT application, deferring national decisions — including a Nepal national phase entry — while the search and preliminary reports arrive. The priority discipline is identical underneath: the earliest filing date governs everything, and the calendar is the strategy.
The practice discipline that keeps claims alive
Diarise the window the day of the first filing
Six or twelve months, converted to AD dates, with internal deadlines set weeks ahead of the boundary.
Order certified documents early
Certified copies and translations take weeks; a priority claim is proven by documents, not assertions.
Keep identities identical across filings
Same applicant name, same mark or invention, same scope. Mismatches give examiners and opponents the argument that the claim covers something else.
Sequence the class list inside the window
Nepal's single-class rule applies to inbound claims: each class claims separately, and classes added after the window file on their own later date.
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This article is general information, not legal advice.