Patent US3444409A successfully refreshed from Google Patents.
US3444409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush assembly for dynamoelectric machine
Assignee: Controls Company of America
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Filing: 1967-11-09
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Granted: 1969-05-13
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Expires: 1987-11-09
Abstract
No abstract record available.
Inventors
- 👤 Edward Latta
- 👤 Edmund J Godin
- 👤 Jerome Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:43
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/38; H01R39/39; H02; H02K; H02K11/00; H02K11/20; H02K11/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |