US2656730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulley and method of making same
Assignee: John E Mitchell Co
•
Filing: 1949-12-08
•
Granted: 1953-10-27
•
Expires: 1969-12-08
Abstract
No abstract record available.
Inventors
- 👤 Mitchell Orville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:32
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/26; B21D53/261; F; F16; F16H; F16H55/00; F16H55/32; F16H55/36; F16H55/44; Y; Y10; Y10S; Y10S474/00; Y10S474/902; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49696; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/4992
Claims Analysis
Total Claims: 0
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US1996109A
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US2260149A
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US2306389A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |