US3452228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor construction
Assignee: Scott Fetzer Co
•
Filing: 1966-09-12
•
Granted: 1969-06-24
•
Expires: 1986-09-12
Abstract
No abstract record available.
Inventors
- 👤 Lee A Woolley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:54
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/116; H02K21/00; H02K21/12; H02K21/14; H02K21/145; H03; H03F; H03F3/00; H03F3/68; H02K2201/00; H02K2201/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2465042A
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US2467870A
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US2603983A
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US2936644A
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US3241397A
Cited
US3142774A
Cited
US3109950A
Cited
US3187209A
Cited
US3183387A
Cited
US3268751A
Cited
US3307056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |