US3427484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet stator dc motor with hand tool gear train
Assignee: Rockwell Manufacturing Co
•
Filing: 1965-09-28
•
Granted: 1969-02-11
•
Expires: 1985-09-28
Abstract
No abstract record available.
Inventors
- 👤 Henning Karlby
- 👤 Howard Reed Grundy
- 👤 John R Speer
- 👤 George D Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:05
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/02; H02K23/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1080026A
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US2394111A
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US3034376A
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US3182215A
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US3201625A
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US3100270A
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US3321650A
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US3336490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |