US2804576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical protective equipment
Assignee: General Electric Co
•
Filing: 1953-05-06
•
Granted: 1957-08-27
•
Expires: 1973-05-06
Abstract
No abstract record available.
Inventors
- 👤 Thellwell R Coggeshall
- 👤 Bany Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:10
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/22; H02H7/222; H01; H01F; H01F38/00; H01F38/20; H01F38/22; H01F38/28; H02H7/228
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |