US3406440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming multi-groove pulleys
Assignee: Eaton Corp
•
Filing: 1966-02-24
•
Granted: 1968-10-22
•
Expires: 1986-02-24
Abstract
No abstract record available.
Inventors
- 👤 William C Trute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:10
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/26; B21D53/261; Y; Y10; Y10S; Y10S416/00; Y10S416/03; Y10T; Y10T29/00; Y10T29/49; Y10T29/49453; Y10T29/4946
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2826804A
Cited
US2493053A
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US2929345A
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US2805582A
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US2869223A
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US3128539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |