US2673470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed, low-vibration drive pulley for flat belts
Assignee: Individual
•
Filing: 1952-07-30
•
Granted: 1954-03-30
•
Expires: 1972-07-30
Abstract
No abstract record available.
Inventors
- 👤 William J Cosmos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:25
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/36; F16H55/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US226013A
Cited
US986930A
Cited
US1027639A
Cited
US1808440A
Cited
US1765402A
Cited
US2417467A
Cited
US2495459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |