US3487438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch and brake arrangements for a motor
Assignee: QUICK ROTAN BECKER AND CO
•
Filing: 1968-05-03
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Granted: 1969-12-30
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Expires: 1988-05-03
Abstract
No abstract record available.
Inventors
- 👤 Ernst Becker
- 👤 Karl Notz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:23
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; F16D67/06; H; H02; H02P; H02P29/00; H02P29/0016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2514385A
Cited
US2659830A
Cited
US2801720A
Cited
US2848085A
Cited
US3272290A
Cited
US3254746A
Cited
US3322249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |