Patent US2847959A successfully refreshed from Google Patents.
Patent US2710622A successfully refreshed from Google Patents.
US2710622A
Expired / Lapsed
US
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One piece fluid valve
Assignee: Barr Rubber Products Co
•
Filing: 1951-04-26
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Granted: 1955-06-14
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Expires: 1971-04-26
Abstract
No abstract record available.
Inventors
- 👤 John C Chupa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:06
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/20; F16K15/202; Y; Y10; Y10T; Y10T137/00; Y10T137/3584
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1942959A
Cited
FR828245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |