US3048723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric braked motor
Assignee: Douglas Aircraft Co Inc
•
Filing: 1958-12-29
•
Granted: 1962-08-07
•
Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Jack H Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:32
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/12; H02K7/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1594398A
Cited
US2356972A
Cited
US2469808A
Cited
US2700343A
Cited
US2727163A
Cited
US2880335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |