US3036594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal position check valve
Assignee: Individual
•
Filing: 1959-06-26
•
Granted: 1962-05-29
•
Expires: 1979-06-26
Abstract
No abstract record available.
Inventors
- 👤 Clifford A Salisbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:31
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/025; F16K2200/00; F16K2200/30; F16K2200/303; F16K2200/305; F16K2200/3053; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7914; Y10T137/7922; Y10T137/7923; Y10T137/7929; Y10T137/7937
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US277227A
Cited
US455913A
Cited
US1710635A
Cited
US1871285A
Cited
US2603452A
Cited
FR1086204A
Cited
US2918083A
Cited
US2912001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |