Patent US2925691A successfully refreshed from Google Patents.
US2925691A
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Grinding machine
Assignee: MCLOUTH STEEL CORP
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Filing: 1957-12-27
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Granted: 1960-02-23
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Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Edgar D Kibble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:06
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/12; F; F15; F15B; F15B11/00; F15B11/16; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/20576; F15B2211/20592; F15B2211/30; F15B2211/305; F15B2211/3056; F15B2211/30565; F15B2211/3057; F15B2211/32; F15B2211/327; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/71; F15B2211/7114; F15B2211/7128; F15B2211/7142
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) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |