Patent US2523354A successfully refreshed from Google Patents.
US2812776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Actron Industries Inc
•
Filing: 1953-01-08
•
Granted: 1957-11-12
•
Expires: 1973-01-08
Abstract
No abstract record available.
Inventors
- 👤 Leroy A Lofftus
- 👤 Russell E Prentice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:50
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0603; F16K31/0624; F16K31/0627; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686; Y10T137/86879; Y10T137/86895
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US583632A
Cited
US1193036A
Cited
US793463A
Cited
US1793659A
Cited
US2047319A
Cited
US2152084A
Cited
DE732831C
Cited
US2343265A
Cited
US2218662A
Cited
GB578932A
Cited
US2620822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |