US2480136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-speed drive
Assignee: Individual
•
Filing: 1946-09-11
•
Granted: 1949-08-30
•
Expires: 1966-09-11
Abstract
No abstract record available.
Inventors
- 👤 John H Holstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:39
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F41; F41A; F41A27/00; F41A27/06; F41A27/18; F41A27/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US641097A
Cited
FR324344A
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US812886A
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GB190605333A
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US958515A
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CH63862A
Cited
US1505083A
Cited
DE684705C
Cited
FR800959A
Cited
GB520265A
Cited
US2306476A
Cited
US2382110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |