US2420581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission for steam or internalcombustion engines
Assignee: Individual
•
Filing: 1944-12-21
•
Granted: 1947-05-13
•
Expires: 1964-12-21
Abstract
No abstract record available.
Inventors
- 👤 Bacon Laurence Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:14
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H2714/00; F16H2714/04; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19084; Y10T74/19219; Y10T74/19242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1125140A
Cited
FR452133A
Cited
US1614819A
Cited
US1783513A
Cited
US2103543A
Cited
US2243482A
Cited
US2265078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-12 | 1950-11-11 | 1951-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-12 | 1954-11-11 | 1955-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-12 | 1958-11-11 | 1959-05-13 | $7700.00 | Window Closed / Lapsed |