US2440589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed device for hydraulically operated change-speed gears
Assignee: Individual
•
Filing: 1939-04-17
•
Granted: 1948-04-27
•
Expires: 1959-04-17
Abstract
No abstract record available.
Inventors
- 👤 Kegresse Adolphe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:58
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/28; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL41842C
Cited
US635684A
Cited
US1579540A
Cited
DE402912C
Cited
US1661613A
Cited
DE432137C
Cited
US1866891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |