US1709835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for cutting double-helical or double-spiral gears
Assignee: Individual
•
Filing: 1926-10-25
•
Granted: 1929-04-23
•
Expires: 1946-10-25
Abstract
No abstract record available.
Inventors
- 👤 Bottcher Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:17
CPC Classifications
B; B23; B23Q; B23Q27/00; B23Q27/006; B23F; B23F23/00; B23F23/12; B23F23/1237; B23F23/125; B23F7/00; B23F9/00; B23F9/08; B23F9/10; B23F9/105; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/103816; Y10T409/103975
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) | 1932-04-22 | 1932-10-22 | 1933-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-04-22 | 1936-10-22 | 1937-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-04-22 | 1940-10-22 | 1941-04-23 | $7700.00 | Window Closed / Lapsed |