US2932531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check valve plug
Assignee: Scovill Inc
•
Filing: 1956-06-13
•
Granted: 1960-04-12
•
Expires: 1976-06-13
Abstract
No abstract record available.
Inventors
- 👤 Briechle Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:53
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/20; Y; Y10; Y10S; Y10S285/00; Y10S285/91; Y10T; Y10T137/00; Y10T137/3584; Y10T137/3786
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735645A
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US1187154A
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US1438081A
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US1564270A
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US1948762A
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US2021745A
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US2271777A
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US2265615A
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US2477533A
Cited
US2615740A
Cited
US2769667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |