US2927767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve with seal construction
Assignee: AIR ASSOCIATES Inc
•
Filing: 1956-08-01
•
Granted: 1960-03-08
•
Expires: 1976-08-01
Abstract
No abstract record available.
Inventors
- 👤 Nicolas M Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:45
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/42; F16K1/46; F16K1/465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US565682A
Cited
US1563590A
Cited
US2069297A
Cited
US1962558A
Cited
US1954044A
Cited
US2143399A
Cited
US2685296A
Cited
US2745432A
Cited
US2885176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |