US2813505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making sanding disks
Assignee: CALIFORNIA ABRASIVES Inc
•
Filing: 1953-10-13
•
Granted: 1957-11-19
•
Expires: 1973-10-13
Abstract
No abstract record available.
Inventors
- 👤 Eirinberg Phil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:15
CPC Classifications
B; B24; B24D; B24D18/00; B24D18/009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2229490A
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US2404454A
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US2417472A
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US2445451A
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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) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |