US2999398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed change device
Assignee: Individual
•
Filing: 1959-03-26
•
Granted: 1961-09-12
•
Expires: 1979-03-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:58
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/025; F16H1/00; F16H1/02; F16H1/20; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1629180A
Cited
US1674200A
Cited
US1980933A
Cited
US2116166A
Cited
US2185545A
Cited
US2504066A
Cited
US2496857A
Cited
US2596794A
Cited
US2679735A
Cited
US2769323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |