Patent US3135885A successfully refreshed from Google Patents.
US3135885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machines
Assignee: AO Smith Corp
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Filing: 1959-03-26
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Granted: 1964-06-02
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Expires: 1979-03-26
Abstract
No abstract record available.
Inventors
- 👤 John T Maynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:56
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/132; F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0653
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN A DYNAMOELECTRIC MACHINE, A STATOR SECTION HAVING AN ANNULAR LAMINATED CORE CARRYING A MULTI-TURN FIELD WINDING, SAID CORE HAVING ROUNDED END EDGES,A PERFORMED PLASTIC MEMBRANE SECURED IN INTIMATE CONTACT WITH THE STATOR SECTION TO HERMETICALLY ENCLOSED THE STATOR SECTION, A RESILIENT SLEEVE ENCIRCLING THE LAMINATED CORE AND MEN BRANE, AND A FRAME HAVING A TUBULAR PORTION CLAMPED ABOUT THE CORE TO SUPPORT THE STATOR SECTION.
Claim 2
Dependent Claim
66 words
IN A DYNAMOELECTRIC MACHINE, A STATOR SECTION HAVING AN ANNULAR LAMINATED CORE CARRYING A MULTI-TURN FIELD WINDING, SAID CORE HAVING ROUNDED END EDGES,A PERFORMED PLASTIC MEMBRANE SECURED IN INTIMATE CONTACT WITH THE STATOR SECTION TO HERMETICALLY ENCLOSED THE STATOR SECTION, A RESILIENT SLEEVE ENCIRCLING THE LAMINATED CORE AND MEN BRANE, AND A FRAME HAVING A TUBULAR PORTION CLAMPED ABOUT THE CORE TO SUPPORT THE STATOR SECTION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |