Patent US2171591A successfully refreshed from Google Patents.
US2171591A
Expired / Lapsed
US
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Brush
Assignee: Individual
•
Filing: 1935-09-05
•
Granted: 1939-09-05
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Expires: 1955-09-05
Abstract
No abstract record available.
Inventors
- 👤 Henry D Minich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:31
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/005; A46B7/00; A46B7/04; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-09-04 | 1943-03-06 | 1943-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-09-04 | 1947-03-06 | 1947-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-09-04 | 1951-03-06 | 1951-09-05 | $7700.00 | Window Closed / Lapsed |