US2559337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid engaged and released clutch
Assignee: David Brown and Sons Huddersfield Ltd
•
Filing: 1945-10-26
•
Granted: 1951-07-03
•
Expires: 1965-10-26
Abstract
No abstract record available.
Inventors
- 👤 Balmforth Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:35
CPC Classifications
F; F16; F16H; F16H3/00; F16D; F16D25/00; F16D25/10; F16H2712/00; F16H2712/04; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/8593; Y10T137/86493; Y10T137/86839
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US506517A
Cited
NL37639C
Cited
US1475020A
Cited
GB207318A
Cited
GB232734A
Cited
CH143185A
Cited
US2094449A
Cited
US2028152A
Cited
US2150950A
Cited
US2204872A
Cited
US2423886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |