US2954492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush ring assembly
Assignee: Thor Power Tool Co
•
Filing: 1957-12-02
•
Granted: 1960-09-27
•
Expires: 1977-12-02
Abstract
No abstract record available.
Inventors
- 👤 Voe Paul R De
- 👤 Wilmer C Nussbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:56
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/38; H01R39/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US566366A
Cited
US1991356A
Cited
US2195801A
Cited
US2323575A
Cited
US2545939A
Cited
US2683830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |