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Patent US2540160A successfully refreshed from Google Patents.
US2540160A
Expired / Lapsed
US
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Machine for and method of manufacturing brushes
Assignee: Emhart Industries Inc
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Filing: 1947-07-24
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Granted: 1951-02-06
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Expires: 1967-07-24
Abstract
No abstract record available.
Inventors
- 👤 Berg Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:46
CPC Classifications
A; A46; A46D; A46D3/00; A46D3/04; A46D3/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1309660A
Cited
GB189710615A
Cited
US1153738A
Cited
US1557166A
Cited
US1649310A
Cited
US1871775A
Cited
US1988822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |