Patent US2655935A successfully refreshed from Google Patents.
US2655935A
Expired / Lapsed
US
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Pressure relief valve assembly
Assignee: Individual
•
Filing: 1946-12-26
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Granted: 1953-10-20
•
Expires: 1966-12-26
Abstract
No abstract record available.
Inventors
- 👤 Robert B Kinzbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:53
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/32; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7905; Y10T137/7922; Y10T137/7925
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |