US2604502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Commutator
Assignee: Machines Electrostatiques SA
•
Filing: 1950-04-06
•
Granted: 1952-07-22
•
Expires: 1970-04-06
Abstract
No abstract record available.
Inventors
- 👤 Felici Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:54
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/06; H01R43/08; H01R39/00; H01R39/02; H01R39/04; H01R39/06; 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)
US882682A
Cited
US1241559A
Cited
US1407776A
Cited
US1757393A
Cited
US1839859A
Cited
GB499918A
Cited
US2236257A
Cited
US2316651A
Cited
US2316652A
Cited
US2400590A
Cited
US2451500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |