Patent US2763104A successfully refreshed from Google Patents.
US2763104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible abrasive brush
Assignee: Individual
•
Filing: 1952-07-19
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Granted: 1956-09-18
•
Expires: 1972-07-19
Abstract
No abstract record available.
Inventors
- 👤 Eric R Lindenborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:09
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB306713A
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US2015030A
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US2049324A
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US2230968A
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US2388867A
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US2465396A
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US2609642A
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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) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |