Patent US2878688A successfully refreshed from Google Patents.
US2878688A
Expired / Lapsed
US
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Variable transmission
Assignee: Individual
•
Filing: 1953-03-16
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Granted: 1959-03-24
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Expires: 1973-03-16
Abstract
No abstract record available.
Inventors
- 👤 William E Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:20
CPC Classifications
F; F16; F16H; F16H29/00; F16H29/02; F16H29/04; F16H37/00; F16H37/02; F16H37/06; F16H2702/00; F16H2702/06; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102; Y10T74/211
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US266882A
Cited
US1869055A
Cited
US1875854A
Cited
FR833533A
Cited
US2256903A
Cited
US2357008A
Cited
US2547453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |