US2007848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact apparatus
Assignee: BEST Manufacturing Co
•
Filing: 1930-12-05
•
Granted: 1935-07-09
•
Expires: 1950-12-05
Abstract
No abstract record available.
Inventors
- 👤 Cromartie George Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:59
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/74; H01R33/76; H01R33/7664
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) | 1938-07-08 | 1939-01-07 | 1939-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-07-08 | 1943-01-07 | 1943-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-07-08 | 1947-01-07 | 1947-07-09 | $7700.00 | Window Closed / Lapsed |