US2498982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive type cutting element and the manufacture thereof
Assignee: Individual
•
Filing: 1947-04-07
•
Granted: 1950-02-28
•
Expires: 1967-04-07
Abstract
No abstract record available.
Inventors
- 👤 Davies George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:42
CPC Classifications
B; B24; B24D; B24D18/00; B24D18/0018; C; C09; C09K; C09K3/00; C09K3/14; C09K3/1409; Y; Y10; Y10T; Y10T407/00; Y10T407/18; Y10T407/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1501049A
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US1631212A
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US1770157A
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US1848408A
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US1956169A
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US2114072A
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US2092130A
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US2275420A
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US2177751A
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US2314604A
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US2248530A
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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) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |