US2746816A
Expired / Lapsed
US
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Lubricated expansible upsilon-pulley structure
Assignee: Reliance Electric and Engineering Co
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Filing: 1953-04-02
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Granted: 1956-05-22
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Expires: 1973-04-02
Abstract
No abstract record available.
Inventors
- 👤 John S Michie
- 👤 Adam L Everroad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:35
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/048; F16H57/0487; F16H57/0489; F16H55/00; F16H55/32; F16H55/52; F16H55/56; F16N; F16N1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |