US2922436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined test and safety valve
Assignee: Motors Liquidation Co
•
Filing: 1956-09-07
•
Granted: 1960-01-26
•
Expires: 1976-09-07
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Brash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:26
CPC Classifications
F; F16; F16K; F16K24/00; F02; F02B; F02B77/00; F02B77/08; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K2200/00; F16K2200/30; F16K2200/303; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/7877; Y10T137/7904; Y10T137/7922; Y10T137/7923
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE68789C
Cited
US382329A
Cited
US790764A
Cited
GB191308329A
Cited
US1196862A
Cited
US1579985A
Cited
US2045858A
Cited
US2122484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |