US3377264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated abrasives for electrolytic grinding
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1964-11-03
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Granted: 1968-04-09
•
Expires: 1984-11-03
Abstract
No abstract record available.
Inventors
- 👤 Bruce W Duke
- 👤 Charles W Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:21
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/001; B24D3/002; B24D3/004; B23; B23H; B23H5/00; B23H5/06; B23H5/08; B24D11/00; B24D7/00
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) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |