US2819441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor
Assignee: KINDAR Corp
•
Filing: 1954-10-19
•
Granted: 1958-01-07
•
Expires: 1974-10-19
Abstract
No abstract record available.
Inventors
- 👤 Willard E Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:02
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/06; H01H35/10; H02; H02K; H02K11/00; H02K11/20; H02K11/21; H02K11/23; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/924; Y10S388/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US111112A
Cited
US1982000A
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US2176804A
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US2552296A
Cited
US2456701A
Cited
US2478848A
Cited
US2453101A
Cited
US2738391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |