US2152544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic brake adjuster
Assignee: R I LATHEM
•
Filing: 1938-08-05
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Granted: 1939-03-28
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Expires: 1958-08-05
Abstract
No abstract record available.
Inventors
- 👤 Marcus H Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:53
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52
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) | 1942-03-27 | 1942-09-26 | 1943-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-27 | 1946-09-26 | 1947-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-27 | 1950-09-26 | 1951-03-28 | $7700.00 | Window Closed / Lapsed |