US2335444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for changespeed gearing
Assignee: WILLIAM M LIDDON
•
Filing: 1941-09-10
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Granted: 1943-11-30
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Expires: 1961-09-10
Abstract
No abstract record available.
Inventors
- 👤 Glenn T Randol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:37
CPC Classifications
B; B60; B60W; B60W30/00; B60W30/18; B60W10/00; B60W10/02; B60W10/10; B60W2710/00; B60W2710/10; B60W2710/1005; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18152; Y10T74/19; Y10T74/19219; Y10T74/19242; Y10T74/19247; Y10T74/19293; Y10T74/19298; Y10T74/19326; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20085; Y10T74/20104; Y10T74/2011; Y10T74/2014; Y10T74/20146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-11-29 | 1947-05-31 | 1947-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-29 | 1951-05-31 | 1951-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-29 | 1955-05-31 | 1955-11-30 | $7700.00 | Window Closed / Lapsed |