US2802313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive holder
Assignee: Individual
•
Filing: 1951-10-12
•
Granted: 1957-08-13
•
Expires: 1971-10-12
Abstract
No abstract record available.
Inventors
- 👤 Howard A Bleam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:57
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/02; B24D15/023; B24D15/026; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44778; Y10T24/44923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US474237A
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US836189A
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US959213A
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US1025859A
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US1656981A
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US1763561A
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US1968215A
Cited
US2103320A
Cited
US2448178A
Cited
US2435335A
Cited
US2464668A
Cited
US2553254A
Cited
US2547837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |