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Real-life scenario · fictionalised
The provisional that said nothing
A two-person startup files a three-page provisional describing a system that uses machine learning to predict equipment failure from vibration data. It states the goal, the benefit and the market, and includes one block diagram. Eleven months later, after a year of real engineering, they file a complete specification that describes a specific feature-extraction pipeline and a training method. In month six a research group had published a paper describing a very similar pipeline.
Which claims survive?
Priority attaches to subject matter
Whatever was fairly disclosed in the provisional keeps the earlier date. Everything added in the complete specification takes the later date - and the month-six paper is prior art against that added material.
The provisional described the goal, not the mechanism. So almost nothing of technical substance carries the early date. The claims that matter commercially are the pipeline and the training method, and both are exposed.
The false comfort in between
For eleven months the team told investors and partners that the technology was protected. It was not, in any sense that mattered. A provisional is a dated envelope: it protects what is inside it.
The fix costs nothing at the time. Writing the provisional as though it were the complete specification, minus the claims, would have carried the mechanism back to month zero.
What should have happened
- Written the provisional with the mechanism, the parameters and the alternatives - not the pitch.
- Filed a second provisional when the pipeline was designed, rather than waiting for month eleven.
- Treated the twelve months as time to generate disclosure, not as a pause.
- Recorded, at filing, exactly which subject matter the provisional was believed to support.
A provisional buys a date for what it describes, and for nothing else.
This scenario is a composite teaching example written by Ragulika IP. It does not describe any real client, application or matter, and any resemblance to a specific case is coincidental.
Sources & further reading
- The Patents Act, 1970 (consolidated to 1 August 2024) — Official IP India text
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Before anything is drafted, the useful work is establishing what is already public, what is genuinely yours, and what you can honestly claim.
Educational guidance, not legal advice. This material is published by Ragulika IP for general education and information. It is not legal advice, it does not create a professional-client relationship, and it is not a substitute for advice on your own facts. Patentability, infringement, prosecution strategy and every other IP outcome turn on the specific facts and on the law and Patent Office practice as they stand at the time you act. Please take professional advice before making a decision, and read the underlying provision or judgment before relying on any point stated here.
Last reviewed by Ragulika IP on 2026-08-23. Indian patent law and Patent Office practice change; check the position before you rely on it.