US2634342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Commutator
Assignee: RAYMOND ROSEN ENGINEERING PROD
•
Filing: 1950-02-18
•
Granted: 1953-04-07
•
Expires: 1970-02-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles W Baechler
- 👤 Foster N Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:45
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/56; H01H19/58; 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)
US767846A
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US1472939A
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US1738140A
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US2081184A
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US2180921A
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US2216654A
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US2264045A
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US2254560A
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US2255120A
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US2319240A
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US2383926A
Cited
US2383909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |