US2850653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature d. c. motor
Assignee: EASTERN AIR DEVICES Inc
•
Filing: 1955-11-23
•
Granted: 1958-09-02
•
Expires: 1975-11-23
Abstract
No abstract record available.
Inventors
- 👤 James M Naul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:48
CPC Classifications
H; H02; H02K; H02K11/00; H02K11/20; H02K11/21; H02K11/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1163040A
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US1390619A
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US1929372A
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US1994626A
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US2177472A
Cited
US2329151A
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US2325915A
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US2761031A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |