US2055255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic clutch system for motor vehicles
Assignee: BENDIX PROD CORP
•
Filing: 1932-09-01
•
Granted: 1936-09-22
•
Expires: 1952-09-01
Abstract
No abstract record available.
Inventors
- 👤 Charles L Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:36
CPC Classifications
F; F16; F16D; F16D48/00; F16D48/06; F16D48/02; F16D48/0206; F16D2048/0209; F16D2048/0257; F16D2048/0266; F16D2500/00; F16D2500/10; F16D2500/108; F16D2500/1088; F16D2500/30; F16D2500/304; F16D2500/3041; F16D2500/30415; F16D2500/3042; F16D2500/30426; F16D2500/314; F16D2500/31406; F16D2500/31413; F16D2500/3144; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19284; Y10T74/19288
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) | 1939-09-22 | 1940-03-23 | 1940-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-22 | 1944-03-23 | 1944-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-22 | 1948-03-23 | 1948-09-22 | $7700.00 | Window Closed / Lapsed |