US2814690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic relay
Assignee: General Electric Co
•
Filing: 1954-03-03
•
Granted: 1957-11-26
•
Expires: 1974-03-03
Abstract
No abstract record available.
Inventors
- 👤 John S Zimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:16
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US397418A
Cited
FR403505A
Cited
US1060598A
Cited
US1785887A
Cited
US1869648A
Cited
US2292497A
Cited
US2377265A
Cited
US2327533A
Cited
US2391668A
Cited
US2517052A
Cited
US2526455A
Cited
US2558640A
Cited
US2668207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |