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Patent US2832227A successfully refreshed from Google Patents.
US2832227A
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Rotatable drive mechanism
Assignee: Individual
•
Filing: 1954-09-13
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Granted: 1958-04-29
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Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 Macleod Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:55
CPC Classifications
F; F16; F16H; F16H13/00; F16H13/10; G; G11; G11B; G11B19/00; G11B19/20; G11B19/26; G11B19/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731809A
Cited
US2161148A
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US2392193A
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US2547666A
Cited
US2467261A
Cited
US2674131A
Cited
GB708567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |