US2491188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat power transmission belt
Assignee: Graton and Knight Co
•
Filing: 1945-12-22
•
Granted: 1949-12-13
•
Expires: 1965-12-22
Abstract
No abstract record available.
Inventors
- 👤 Sherman D Lesesne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:45
CPC Classifications
F; F16; F16G; F16G1/00; F16G1/06; F16G1/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/249921; Y10T428/249924; Y10T428/249933; Y10T428/249934; Y10T442/00; Y10T442/60; Y10T442/643
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) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |