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US2472241A
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Assignee: Individual
•
Filing: 1946-10-08
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Granted: 1949-06-07
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Expires: 1966-10-08
Abstract
No abstract record available.
Inventors
- 👤 Charles R Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:49
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/22; B23Q17/2233; B23Q17/2275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US868074A
Cited
AT35523B
Cited
US1020020A
Cited
US1486667A
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US1749980A
Cited
US1794162A
Cited
US2097849A
Cited
US2398066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |