US2291687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truing jack
Assignee: Individual
•
Filing: 1941-08-21
•
Granted: 1942-08-04
•
Expires: 1961-08-21
Abstract
No abstract record available.
Inventors
- 👤 Charles K Brobst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:59
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/021; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T279/24; Y10T279/26; Y10T409/00; Y10T409/30; Y10T82/00; Y10T82/25; Y10T82/2572
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) | 1945-08-03 | 1946-02-02 | 1946-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-03 | 1950-02-02 | 1950-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-03 | 1954-02-02 | 1954-08-04 | $7700.00 | Window Closed / Lapsed |