US2856523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo system
Assignee: General Electric Co
•
Filing: 1953-11-30
•
Granted: 1958-10-14
•
Expires: 1973-11-30
Abstract
No abstract record available.
Inventors
- 👤 John J Larew
- 👤 Curtis E James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:44
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1418; G05D3/121; G05D3/122
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2433195A
Cited
US2519890A
Cited
US2716208A
Cited
US2602660A
Cited
US2535147A
Cited
US2585377A
Cited
US2682627A
Cited
US2561319A
Cited
US2611031A
Cited
US2729772A
Cited
US2790943A
Cited
US2758278A
Cited
US2736859A
Cited
US2782994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |