US2448614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor drive for brushes and the like
Assignee: Individual
•
Filing: 1944-09-14
•
Granted: 1948-09-07
•
Expires: 1964-09-14
Abstract
No abstract record available.
Inventors
- 👤 Gilbert B Mirus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:31
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H02K7/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1926223A
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US1828895A
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US1961243A
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US1981688A
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US1969549A
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US2210094A
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US2231466A
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US2146551A
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US2232363A
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US2314117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |