US2885502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switchgear of the drawout type
Assignee: General Electric Co
•
Filing: 1957-12-27
•
Granted: 1959-05-05
•
Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Charles D Eichelberger
- 👤 William N Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:50
CPC Classifications
H; H02; H02B; H02B11/00; H02B11/12; H02B11/127; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1416182A
Cited
US1798705A
Cited
US1791446A
Cited
US2273002A
Cited
US2504018A
Cited
US2792462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |