US2664681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dressing diamond wheels
Assignee: ROBERT J HOOD
•
Filing: 1948-07-19
•
Granted: 1954-01-05
•
Expires: 1968-07-19
Abstract
No abstract record available.
Inventors
- 👤 Frank W Clark
- 👤 Ralph T Stolze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:13
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1075227A
Cited
US1143337A
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US1350044A
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US1424765A
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US1513757A
Cited
US1896533A
Cited
US2414182A
Cited
US2528621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |