Paris Convention, 1883 — Intellectual Property Rights II Notes

Paris Convention, 1883

In 1873, foreign inventors refused to show their inventions at an international exhibition in Vienna — they were terrified that rivals would copy and patent the ideas the moment they were displayed. That embarrassment pushed the world toward the first great industrial-property treaty. Signed in Paris in 1883, it gave inventors a priceless safety net — the right of priority — so that filing in one country buys you time to file everywhere else without losing your place in the queue.

The Paris Convention for the Protection of Industrial Property, 1883 is the foundational treaty for industrial property — patents, utility models, industrial designs, trademarks, service marks, trade names, geographical indications and the repression of unfair competition. It is administered by WIPO, has been revised several times (latest Stockholm 1967), and India joined in 1998. It is the industrial-property counterpart to Berne (which covers copyright).

Its two great pillars are:

A. National treatment (Arts. 2–3)

Each member must give nationals of other member countries the same industrial-property protection it gives its own nationals. A foreign applicant is on equal footing with a local one.

B. Right of priority (Art. 4)

This is the star provision. Once an applicant files a first application in one member country, they get a priority period in which to file in the other member countries; any such later filing is treated as if filed on the date of the first. Anything done in between (a rival’s filing, a publication) cannot defeat the application. The priority periods are:

• 12 months for patents and utility models;
• 6 months for industrial designs and trademarks.

C. Common rules

The Convention also lays down shared rules — for example, the independence of patents granted in different countries, protection of well-known marks, and protection against unfair competition (Art. 10bis).

Article 4A(1), Paris Convention: “Any person who has duly filed an application for a patent … in one of the countries of the Union … shall enjoy, for the purpose of filing in the other countries, a right of priority during the periods hereinafter fixed.”

In Simple Terms: Paris (1883) is the great industrial-property treaty — patents, designs, trademarks. Its two pillars are national treatment (foreigners treated as locals) and the right of priority — file first in one country and you have 12 months (patents) or 6 months (designs/trademarks) to file elsewhere while keeping your original date. WIPO runs it; India joined in 1998.

🧩 WORKED EXAMPLE — the priority clock

Facts. An inventor files a patent application in Germany on 1 January. A rival independently files a similar application in India on 1 June. The German inventor then files in India on 1 October (within 12 months) and claims Paris priority.

Rule. Under Art. 4, a patent applicant has a 12-month right of priority; the later Indian filing is treated as if made on the first (German) filing date.

Apply. The German inventor’s Indian application is deemed filed on 1 January, which is before the rival’s 1 June filing, so it prevails.

Decoy. The rival’s earlier actual Indian filing does not win — priority back-dates the German inventor’s application ahead of it.

Conclusion. The German inventor’s application takes priority; the right of priority did exactly its job — it froze the queue for 12 months.

flowchart TD
    ROOT["Paris Convention 1883 (industrial property, run by WIPO)"]:::root
    ROOT --> A["National treatment — foreigners treated as locals (Arts. 2-3)"]:::leaf
    ROOT --> B["Right of priority (Art. 4)"]:::leaf
    B --> B1["Patents / utility models — 12 months"]:::leaf
    B --> B2["Designs / trademarks — 6 months"]:::leaf
    ROOT --> C["Common rules — independence of patents, unfair competition"]:::leaf
    classDef root fill:#FFF8DC,stroke:#000,stroke-width:1px,color:#000;
    classDef leaf fill:#E6F3FF,stroke:#1E3A8A,color:#000;
    linkStyle default stroke:#888,stroke-width:1px;

Case Laws

• Paris is treaty law rather than case law — but its right of priority is embedded in India’s Patents Act 1970 (s.135, convention applications) and the Trade Marks Act 1999 (s.154), which give convention applicants the benefit of the earlier foreign filing date.

Back to Top

📄 Full notes + Question Bank (₹199) — every topic in depth, model answers to all past KSLU questions, in one printable PDF. Get the bundle · 10 Solved Problems · All Intellectual Property Rights II topics