https://patentpulse-self.vercel.app/api/patent/status
Patent status lookup / legal status / remaining patent life / expiry by patent number. Returns full patent details (title, type, claims, CPC/USPC classes, assignees, inventors, abstract), an estimated ~20-year expiry and years remaining, plus maintenance and citation profile for any US patent ID. For IP and patent agents.
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://patentpulse-self.vercel.app/api/patent/status", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
HEAD https://patentpulse-self.vercel.app/ returned 200.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
EVIDENCE
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call.