Patent US3201158A successfully refreshed from Google Patents.
US3201158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sucker rod coupling
Assignee: Liberty Manufacturing Co of Texas
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Filing: 1964-01-09
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Granted: 1965-08-17
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Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Robert B Meripol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:31
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; Y; Y10; Y10T; Y10T403/00; Y10T403/57; Y10T403/5746
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A SUCKER ROD COUPLING HAVING IMPROVED TENSION DISTORTION RESISTANCE COMPRISING: A BODY MEMBER OF TUBULAR CONFIGURATION HAVING CONTINUOUS INTERNAL THREADS SUBSTANTIALLY THE FULL LENGTH OF THE INTERNAL WALL THEREOF, WITH UNTHREADED PORTIONS AT EACN END, THE BODY MEMBER HAVING PARALLEL PLANOR OPPOSED ENDS; AN EXTERNALLY THREADED TUBULAR MEMBER THREADABLY POSITIONED WITHIN THE TUBULAR BODY MEMBER INTERMEDIATE THE ENDS THEREOF, THE TUBULAR MEMBER BEING OF SHORT AXIAL LENGTH RELATIVE TO THE BODY MEMBER LEAVING SUCKER ROD RECEIVING BODY THREADS TO EITHER SIDE THEREOF, THE TUBULAR MEMBER HAVING AT LEAST ONE SLIT IN THE WALL THEREOF WHEREBY THE TUBULAR MEMBER IS RADIALLY EXTERNALLY EXPANDABLE; AND AN EXPANDER MEMBER OF LENGTH SUBSTANTIALLY EQUAL THE LENGTH OF THE TUBULAR MEMBER, THE EXPANDER MEMBER FORCEABLY POSITIONABLE IN THE TUBULAR MEMBER TO RADIALLY EXPAND THE TUBULAR MEMBER AGAINST THE INTERNAL WALL OF THE BODY MEMBER TO REINFORCE THE DEFORMATION RESISTANCE OF THE INTERMEDIATE PORTION OF THE BODY MEMBER.
Claim 2
Dependent Claim
152 words
A SUCKER ROD COUPLING HAVING IMPROVED TENSION DISTORTION RESISTANCE COMPRISING: A BODY MEMBER OF TUBULAR CONFIGURATION HAVING CONTINUOUS INTERNAL THREADS SUBSTANTIALLY THE FULL LENGTH OF THE INTERNAL WALL THEREOF, WITH UNTHREADED PORTIONS AT EACN END, THE BODY MEMBER HAVING PARALLEL PLANOR OPPOSED ENDS; AN EXTERNALLY THREADED TUBULAR MEMBER THREADABLY POSITIONED WITHIN THE TUBULAR BODY MEMBER INTERMEDIATE THE ENDS THEREOF, THE TUBULAR MEMBER BEING OF SHORT AXIAL LENGTH RELATIVE TO THE BODY MEMBER LEAVING SUCKER ROD RECEIVING BODY THREADS TO EITHER SIDE THEREOF, THE TUBULAR MEMBER HAVING AT LEAST ONE SLIT IN THE WALL THEREOF WHEREBY THE TUBULAR MEMBER IS RADIALLY EXTERNALLY EXPANDABLE; AND AN EXPANDER MEMBER OF LENGTH SUBSTANTIALLY EQUAL THE LENGTH OF THE TUBULAR MEMBER, THE EXPANDER MEMBER FORCEABLY POSITIONABLE IN THE TUBULAR MEMBER TO RADIALLY EXPAND THE TUBULAR MEMBER AGAINST THE INTERNAL WALL OF THE BODY MEMBER TO REINFORCE THE DEFORMATION RESISTANCE OF THE INTERMEDIATE PORTION OF THE BODY MEMBER.
References Cited (Backward Citations)
US595437A
Cited
US668017A
Cited
US941355A
Cited
US1158085A
Cited
US1588128A
Cited
US1599270A
Cited
GB231098A
Cited
US1822444A
Cited
GB365375A
Cited
US2487241A
Cited
US2622120A
Cited
US2508409A
Cited
US2619861A
Cited
US2827925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |