US2282987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic shutoff valve
Assignee: ConocoPhillips Co
•
Filing: 1940-10-17
•
Granted: 1942-05-12
•
Expires: 1960-10-17
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:12
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/24; F16K17/28; E; E21; E21B; E21B34/00; E21B34/06; E21B34/08; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7772; Y10T137/7779; Y10T137/7837; Y10T137/7879; Y10T137/7888; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915; Y10T137/7918
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-05-11 | 1945-11-10 | 1946-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-05-11 | 1949-11-10 | 1950-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-05-11 | 1953-11-10 | 1954-05-12 | $7700.00 | Window Closed / Lapsed |