US2191669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid automobile clutch control
Assignee: Patent Protection Corp
•
Filing: 1935-08-06
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Granted: 1940-02-27
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Expires: 1955-08-06
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Kress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:25
CPC Classifications
F; F16; F16D; F16D48/00; F16D48/02; F16D25/00; F16D25/12; F16D25/14; F16D2048/0209; F16D2048/0221; F16D48/04; F16D2048/045; Y; Y10; Y10S; Y10S74/00; Y10S74/02
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) | 1943-02-26 | 1943-08-28 | 1944-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-26 | 1947-08-28 | 1948-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-26 | 1951-08-28 | 1952-02-27 | $7700.00 | Window Closed / Lapsed |