Patent US2535825A successfully refreshed from Google Patents.
US2535825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Commutator
Assignee: Electrolux Corp
•
Filing: 1948-10-04
•
Granted: 1950-12-26
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Expires: 1968-10-04
Abstract
No abstract record available.
Inventors
- 👤 Eric C Wahiberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:51
CPC Classifications
H; H02; H02K; H02K13/00; H02K13/006; 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)
US1323696A
Cited
US1207359A
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US1578793A
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US1550528A
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US1813333A
Cited
US1898929A
Cited
US2211979A
Cited
US2451500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |