US2282676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck
Assignee: Gulf Research and Development Co
•
Filing: 1941-10-06
•
Granted: 1942-05-12
•
Expires: 1961-10-06
Abstract
No abstract record available.
Inventors
- 👤 Reginald J S Pigott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:06
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/202; B23B31/2012; B23B31/20125; B23B2231/00; B23B2231/20; B23B2231/201; B23B2231/2021; B23B2231/2089; B23B2231/2094; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17529
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 |