US2748544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1954-11-29
•
Granted: 1956-06-05
•
Expires: 1974-11-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Narel
- 👤 Glover C Joyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:47
CPC Classifications
B; B23; B23Q; B23Q7/00; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2514; Y10T82/2516; Y10T82/2524
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2623429A
Cited
US2653502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |