US3077896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple seat valve
Assignee: Individual
•
Filing: 1959-10-01
•
Granted: 1963-02-19
•
Expires: 1979-10-01
Abstract
No abstract record available.
Inventors
- 👤 Archie E Weingard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:50
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/14; F16K15/00; F16K15/02; F16K15/04; F16K15/044; F16K17/00; F16K17/02; F16K17/04; F16K17/0406; F16K2200/00; F16K2200/30; F16K2200/305; F16K2200/3053; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6161; Y10T137/6164; Y10T137/6181; Y10T137/7722; Y10T137/7837; Y10T137/7866; Y10T137/7904; Y10T137/7922; Y10T137/7927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US489324A
Cited
US558744A
Cited
GB189512619A
Cited
US1144499A
Cited
US1202044A
Cited
US1979305A
Cited
US2770443A
Cited
US2954796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |