Patent CA639638A successfully refreshed from Google Patents.
Patent US2846827A successfully refreshed from Google Patents.
US2846827A
Expired / Lapsed
US
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Brush and brush material
Assignee: Osborn Manufacturing Corp
•
Filing: 1952-09-06
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Granted: 1958-08-12
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Expires: 1972-09-06
Abstract
No abstract record available.
Inventors
- 👤 Ruben O Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:38
CPC Classifications
A; A46; A46D; A46D1/00; A46D1/02; A46D1/0238
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US328004A
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US458524A
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US963523A
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US1359104A
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US1748778A
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US2100138A
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US2196079A
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US2328998A
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US2311704A
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US2345730A
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US2459055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |