Patent US2874592A successfully refreshed from Google Patents.
US2874592A
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Self-controlled variable speed planetary type drive
Assignee: Mcculloch Motors Corp
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Filing: 1955-11-07
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Granted: 1959-02-24
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Expires: 1975-11-07
Abstract
No abstract record available.
Inventors
- 👤 John W Oehrli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:12
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/66; F16H61/664; F16H61/6646; F01; F01P; F01P7/00; F01P7/02; F01P7/04; F01P7/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1387550A
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US2173661A
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US2162719A
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US2255420A
Cited
US2325193A
Cited
US2308475A
Cited
CH282491A
Cited
GB694650A
Cited
US2720087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |