US1748827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic clutch mechanism
Assignee: FIRM AG DER MASCHINENFABRIKEN
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Filing: 1927-06-23
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Granted: 1930-02-25
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Expires: 1947-06-23
Abstract
No abstract record available.
Inventors
- 👤 Boltshauser Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:55
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/10; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19433
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) | 1933-02-24 | 1933-08-26 | 1934-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-02-24 | 1937-08-26 | 1938-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-02-24 | 1941-08-26 | 1942-02-25 | $7700.00 | Window Closed / Lapsed |