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US2483879A
Expired / Lapsed
US
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Buffing wheel
Assignee: Individual
•
Filing: 1948-04-29
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Granted: 1949-10-04
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Expires: 1968-04-29
Abstract
No abstract record available.
Inventors
- 👤 George R Churchill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:47
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/001; B24D11/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US537687A
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US709312A
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US981841A
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US2010106A
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US2033253A
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US2146284A
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US2328998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |