US2500308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multispeed gear transmission
Assignee: Individual
•
Filing: 1944-06-27
•
Granted: 1950-03-14
•
Expires: 1964-06-27
Abstract
No abstract record available.
Inventors
- 👤 John J Campodonico
- 👤 Castberg Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:17
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/16; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19233; Y10T74/19377; Y10T74/19386; Y10T74/194
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1724202A
Cited
US1906560A
Cited
US1856189A
Cited
US2185602A
Cited
AT153993B
Cited
US2394580A
Cited
US2315808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |