US2921146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug-in type power take-off device with bimetallic contacts
Assignee: General Electric Co
•
Filing: 1957-12-02
•
Granted: 1960-01-12
•
Expires: 1977-12-02
Abstract
No abstract record available.
Inventors
- 👤 Eric A Ericson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:29
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/50; H01H1/504; H01R; H01R41/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1943958A
Cited
US2077587A
Cited
US2128135A
Cited
US2170298A
Cited
US2361536A
Cited
US2537866A
Cited
US2740942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |