US2545688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generator control system
Assignee: Motors Liquidation Co
•
Filing: 1949-07-22
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Granted: 1951-03-20
•
Expires: 1969-07-22
Abstract
No abstract record available.
Inventors
- 👤 Robert M Critchfield
- 👤 Paul L Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:09
CPC Classifications
H; H02; H02P; H02P29/00; H02P29/0016; H02P29/0027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1124736A
Cited
FR466978A
Cited
US1246056A
Cited
CA172664A
Cited
US1565854A
Cited
US1861180A
Cited
US2097483A
Cited
US2498793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |