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US3001337A
Expired / Lapsed
US
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Opposed disc grinder with co-ordinating feed control
Assignee: Gardner Machine Co
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Filing: 1959-11-16
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Granted: 1961-09-26
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Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 Elman R Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:05
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/16; B24B7/162; B24B7/17
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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |