US1165933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing elastic helical gears.
Assignee: Individual
•
Filing: 1914-02-18
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Granted: 1915-12-28
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Expires: 1934-02-18
Abstract
No abstract record available.
Inventors
- 👤 Karl Alquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:46
CPC Classifications
B; B23; B23F; B23F17/00; B23P; B23P15/00; B23P15/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/49476; Y10T74/00; Y10T74/19; Y10T74/19949; Y10T74/19963; Y10T74/19967
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) | 1918-12-27 | 1919-06-28 | 1919-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-12-27 | 1923-06-28 | 1923-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-12-27 | 1927-06-28 | 1927-12-28 | $7700.00 | Window Closed / Lapsed |