US2572374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for sanding broom handles
Assignee: Individual
•
Filing: 1949-05-11
•
Granted: 1951-10-23
•
Expires: 1969-05-11
Abstract
No abstract record available.
Inventors
- 👤 Carl B Oas
- 👤 Charles H Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:48
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/36; B24B5/38; Y; Y10; Y10T; Y10T279/00; Y10T279/18; Y10T279/24; Y10T279/247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US437911A
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US759187A
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US1198136A
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US1570684A
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US1611418A
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US1823625A
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US2397459A
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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) | 1954-10-22 | 1955-04-23 | 1955-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-22 | 1959-04-23 | 1959-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-22 | 1963-04-23 | 1963-10-23 | $7700.00 | Window Closed / Lapsed |