US2531996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed transmission
Assignee: Individual
•
Filing: 1945-07-23
•
Granted: 1950-11-28
•
Expires: 1965-07-23
Abstract
No abstract record available.
Inventors
- 👤 Charles F Voytech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:22
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/02; F16H61/0293
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE389207C
Cited
FR568292A
Cited
US1609782A
Cited
GB425870A
Cited
US2103540A
Cited
US2171534A
Cited
US2329724A
Cited
US2259732A
Cited
US2303975A
Cited
US2395459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |