Patent US3471276A successfully refreshed from Google Patents.
US3471276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peripheral abrasive wheels with composite rims
Assignee: Unicorn Industries Ltd
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Filing: 1966-11-02
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Granted: 1969-10-07
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Expires: 1986-11-02
Abstract
No abstract record available.
Inventors
- 👤 Chester G Bragaw Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:31
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; B; B24; B24D; B24D18/00; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D3/285; C08L; C08L79/00; C08L79/04; C08L79/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |