US2449818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush cleaning device
Assignee: Individual
•
Filing: 1942-12-26
•
Granted: 1948-09-21
•
Expires: 1962-12-26
Abstract
No abstract record available.
Inventors
- 👤 Arnold O Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:52
CPC Classifications
A; A45; A45D; A45D44/00; A46; A46B; A46B17/00; A46B17/06; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17291; Y10T279/17307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1056084A
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US1305902A
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US1133613A
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US1202432A
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US1368717A
Cited
US1361348A
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US1926948A
Cited
US2239741A
Cited
US2286913A
Cited
US2286972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |