Patent US2541844A successfully refreshed from Google Patents.
US2541844A
Expired / Lapsed
US
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Abrasive wheel
Assignee: Individual
•
Filing: 1949-07-12
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Granted: 1951-02-13
•
Expires: 1969-07-12
Abstract
No abstract record available.
Inventors
- 👤 Titcomb Albert Shepard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:09
CPC Classifications
B; B24; B24D; B24D7/00; B24D7/06; B24D7/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US436892A
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US524572A
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US1416475A
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US1600054A
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US1641799A
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US1892434A
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US1797526A
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US1767321A
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US1794992A
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US2102919A
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US2476334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |