US3528789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating composition applied to boron nitride grinding wheels
Assignee: General Electric Co
•
Filing: 1968-05-15
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Granted: 1970-09-15
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Expires: 1988-05-15
Abstract
No abstract record available.
Inventors
- 👤 Wilfred F Mathewson Jr
- 👤 Robert S Owens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:33
CPC Classifications
B; B24; B24B; B24B1/00; B24D; B24D3/00; B24D3/34; B24D3/342; B24D3/344; B24D3/346; C; C10; C10M; C10M7/00; C10M2201/00; C10M2201/04; C10M2201/043; C10M2201/06; C10M2201/061; C10M2201/065; C10M2201/066; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/10; C10M2201/16; C10M2201/18; C10M2207/00; C10M2207/02; C10M2207/021; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/101; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2227/00; C10M2227/04; C10N; C10N2040/00; C10N2040/20; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |