Patent US2749157A successfully refreshed from Google Patents.
US2749157A
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US
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Pulley hub
Assignee: Chain Belt Co
•
Filing: 1952-07-23
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Granted: 1956-06-05
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Expires: 1972-07-23
Abstract
No abstract record available.
Inventors
- 👤 Clifford A Dennison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:07
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/0018; F16H57/0025; F16D; F16D1/00; F16D1/06; F16H55/00; F16H55/32; F16H55/36; Y; Y10; Y10S; Y10S474/00; Y10S474/903; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US478292A
Cited
US1116470A
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US1398020A
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US1371666A
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US1656935A
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US1700006A
Cited
US1904535A
Cited
US2269821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |