Patent US3280947A successfully refreshed from Google Patents.
US3280947A
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US
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Clutch apparatus
Assignee: International Standard Electric Corp
•
Filing: 1962-11-05
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Granted: 1966-10-25
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 Brewster Arthur Edward
- 👤 Mason Brian Stanley
- 👤 Pearce Geoffrey Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:22
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/02; G; G11; G11B; G11B15/00; G11B15/18; G11B15/24; G11B15/26; G11B15/34; G11B15/675; G11B15/68; G11B15/682; G11B23/00; G11B23/02; G11B23/12; G11B25/00; G11B25/06
Claims Analysis
Total Claims: 0
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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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |