Patent US2743460A successfully refreshed from Google Patents.
Patent US3057609A successfully refreshed from Google Patents.
US3057609A
Expired / Lapsed
US
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Socket member and resilient retainer for cutter bits
Assignee: Cincinnati Mine Machinery Co
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Filing: 1960-05-11
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Granted: 1962-10-09
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Expires: 1980-05-11
Abstract
No abstract record available.
Inventors
- 👤 Claude B Krekeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:26
CPC Classifications
E; E21; E21C; E21C35/00; E21C35/18; E21C35/19; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2272; Y10T407/2282; Y10T407/2286; Y10T408/00; Y10T408/89; Y10T408/907; Y10T408/94; Y10T408/95; Y10T82/00; Y10T82/25; Y10T82/2585
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US559812A
Cited
US1861053A
Cited
US1823168A
Cited
US2155526A
Cited
US2289464A
Cited
US2322929A
Cited
US2434256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |