US2808687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanding tool
Assignee: Individual
•
Filing: 1955-03-09
•
Granted: 1957-10-08
•
Expires: 1975-03-09
Abstract
No abstract record available.
Inventors
- 👤 Howard S Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:43
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/02; B24D15/023; B24D15/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1946562A
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US2189980A
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US2252190A
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US2448178A
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US2459893A
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US2492602A
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US2474622A
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US2540816A
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US2624161A
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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) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |