Patent US1426680A successfully refreshed from Google Patents.
US1426680A
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Generation of convolute lines in hobbing cutters and the like
Assignee: SIMMONS METHOD HOB Co
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Filing: 1918-04-10
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Granted: 1922-08-22
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Expires: 1938-04-10
Abstract
No abstract record available.
Inventors
- 👤 Oliver G Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:23
CPC Classifications
B; B23; B23F; B23F5/00; B23F5/20; B23F5/202; B23F13/00; B23F13/02; Y; Y10; Y10T; Y10T407/00; Y10T407/17; Y10T407/174; Y10T408/00; Y10T408/03; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/10159; Y10T409/101749; Y10T409/102544; Y10T409/102703; Y10T409/102862
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) | 1925-08-21 | 1926-02-20 | 1926-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-08-21 | 1930-02-20 | 1930-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-08-21 | 1934-02-20 | 1934-08-22 | $7700.00 | Window Closed / Lapsed |