Patent US2579749A successfully refreshed from Google Patents.
US2579749A
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Sprocket wheel construction
Assignee: Jeffrey Manufacturing Co
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Filing: 1946-11-23
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Granted: 1951-12-25
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Expires: 1966-11-23
Abstract
No abstract record available.
Inventors
- 👤 Stanley M Mercier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:03
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/30; B; B65; B65G; B65G17/00; B65G17/12; B65G17/126; B65G21/00; B65G21/02; B65G2201/00; B65G2201/04; Y; Y10; Y10S; Y10S198/00; Y10S198/952
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US221879A
Cited
GB189617706A
Cited
US784544A
Cited
US787801A
Cited
US846529A
Cited
US2188025A
Cited
US2231427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |