US2629064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Commutator and method of forming the same
Assignee: Individual
•
Filing: 1950-12-08
•
Granted: 1953-02-17
•
Expires: 1970-12-08
Abstract
No abstract record available.
Inventors
- 👤 Lewis William Purcell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:33
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/06; H01R43/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US435504A
Cited
US1875204A
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US1991046A
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US2060260A
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US2236257A
Cited
US2449309A
Cited
US2451500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |