Patent US3495111A successfully refreshed from Google Patents.
US3495111A
Expired / Lapsed
US
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Small permanent magnet rotor shaded pole motor
Assignee: Tri Tech Inc
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Filing: 1967-12-04
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Granted: 1970-02-10
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Expires: 1987-12-04
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Haydon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:30
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/52; H02K3/521; H02K3/525; H02K21/00; H02K21/12; H02K21/14; H02K21/145; H02K2201/00; H02K2201/12; H02K5/00; H02K5/04; H02K5/22; H02K5/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2450955A
Cited
US2665389A
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US3014141A
Cited
US2951957A
Cited
US2951855A
Cited
US3131323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |