US2943357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making abrasive articles
Assignee: GEN GRINDING WHEEL CORP
•
Filing: 1955-12-02
•
Granted: 1960-07-05
•
Expires: 1975-12-02
Abstract
No abstract record available.
Inventors
- 👤 Macmaster Harry Douglas
- 👤 Athyn Bryn
- 👤 Hans E Bauer
- 👤 Stanford A Guthrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:04
CPC Classifications
B; B24; B24D; B24D18/00; B24D18/009; Y; Y10; Y10S; Y10S264/00; Y10S264/64; Y10S264/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2321252A
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US2347971A
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US2233176A
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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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |