US3135884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible electric motor
Assignee: Emerson Electric Co
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Filing: 1959-01-05
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Granted: 1964-06-02
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Expires: 1979-01-05
Abstract
No abstract record available.
Inventors
- 👤 Frederick O Luenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:54
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128; H02K5/1285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A SUBMERSIBLE ELECTRIC MOTOR ADAPTED TO BE IMMERSED IN WELL LIQUID: A CASING FORMING AN ANNULAR SPACE FOR A STATOR STRUCTURE; AN ANNULAR STATOR STRUCTURE IN SAID SPACE AND HAVING WINDINGS; AN INSULATING LIQUID FILLING FOR THE STRUCTURE; A TUBULAR MEMBER OF PLASTIC MATERIAL ATTACHED TO THE INNER PERIPHERY OF THE STRUCTURE AND SEALING THE SAID ANNULAR SPACED OF THE STRUCTURE; A MOVABLE AND FLEXIBLE WALL DEFINING RESPECTIVELY A CHAMBER IN COMMUNICATION WITH THE SPACE IN WHICH THE ROTOR IS LOCATED AND
Claim 2
Dependent Claim
83 words
IN A SUBMERSIBLE ELECTRIC MOTOR ADAPTED TO BE IMMERSED IN WELL LIQUID: A CASING FORMING AN ANNULAR SPACE FOR A STATOR STRUCTURE; AN ANNULAR STATOR STRUCTURE IN SAID SPACE AND HAVING WINDINGS; AN INSULATING LIQUID FILLING FOR THE STRUCTURE; A TUBULAR MEMBER OF PLASTIC MATERIAL ATTACHED TO THE INNER PERIPHERY OF THE STRUCTURE AND SEALING THE SAID ANNULAR SPACED OF THE STRUCTURE; A MOVABLE AND FLEXIBLE WALL DEFINING RESPECTIVELY A CHAMBER IN COMMUNICATION WITH THE SPACE IN WHICH THE ROTOR IS LOCATED AND
References Cited (Backward Citations)
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 |