US1897386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broaching machine
Assignee: Oilgear Co
•
Filing: 1930-05-31
•
Granted: 1933-02-14
•
Expires: 1950-05-31
Abstract
No abstract record available.
Inventors
- 👤 John P Ferris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:54
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/06; B23Q2705/00; B23Q2705/02; B23Q2705/04; B23Q2705/046; Y; Y10; Y10T; Y10T409/00; Y10T409/40; Y10T409/406475
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) | 1936-02-14 | 1936-08-15 | 1937-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-14 | 1940-08-15 | 1941-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-14 | 1944-08-15 | 1945-02-14 | $7700.00 | Window Closed / Lapsed |