US3473989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a transmission toothed belt
Assignee: Day International Corp
•
Filing: 1967-03-27
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Granted: 1969-10-21
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Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Kenneth D Richmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:10
CPC Classifications
F; F16; F16G; F16G5/00; F16G5/04; F16G5/06; B; B29; B29D; B29D29/00; B29D29/10; B29D29/106; F16G1/00; F16G1/28; F16G5/20; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103; Y10T156/1052
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |