Patent US4072025A successfully refreshed from Google Patents.
Patent US2161702A successfully refreshed from Google Patents.
US2161702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversing gearing comprising pressure fluid operated control coupling
Assignee: Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
•
Filing: 1938-05-02
•
Granted: 1939-06-06
•
Expires: 1958-05-02
Abstract
No abstract record available.
Inventors
- 👤 Durig Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:49
CPC Classifications
F; F16; F16H; F16H3/00; F16H2712/00; F16H2712/04; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19433; Y10T74/19484; Y10T74/19498
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1942-06-05 | 1942-12-05 | 1943-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-05 | 1946-12-05 | 1947-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-05 | 1950-12-05 | 1951-06-06 | $7700.00 | Window Closed / Lapsed |