Patent US3100656A successfully refreshed from Google Patents.
US3100656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin seal ring in tubing joint for plastic coated tubing
Assignee: Hydril LLC
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Filing: 1959-05-11
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Granted: 1963-08-13
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Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Melvin D Macarthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:20
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/001; F16L15/002; E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; E21B17/0423; F16L15/003; F16L15/006; F16L15/008; F16L15/04; F16L58/00; F16L58/18; F16L58/182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A JOINT INTERCONNECTING A PAIR OF PIPES, COMPRISING COAXTIAL PIN AND BOX MEMBERS RESPECTIVELY INCLUDING INTERENGAGED EXTERNAL AND INTERNAL THREADS HOLDING THE PIPES AGAINST SEPARATION, SAID PIN MEMBER BEING SCREWED ABOUT SAID AXIS LONGITUDINALLY FORWARDLY INTO SAID BOX MEMBER, SAID BOX MEMBER HAVING AN ANNULAR RECESS OPENING RADIALLY INWADRLY AND EXTENDING ABOUT THE FREE TERMINAL FORWARD END OF SAID PIN MEMBER, AND SAID BOX MEMBER HAVING AN ANNULAR SHOULDER ATT THE FORWARD END OF THE RECESS AND SPACED FORWARDLY OF AND FACING SAID FORWARD END OF THE PIN MEMBER, AND AN ANNULAR CONTINUOUS RING HAVING SUBSTANTIALLY THE PHYSICAL CHARACTERISTICS OF TETRAFLUOROETHYLENE RECEIVED IN THE RECESS AND IN THE SPACE BETWEEN THE FORWARD END OF THE PIN MEMBER AND SAID SHOULDER, SAID RING BEING COMPRESSED
Claim 2
Dependent Claim
124 words
A JOINT INTERCONNECTING A PAIR OF PIPES, COMPRISING COAXTIAL PIN AND BOX MEMBERS RESPECTIVELY INCLUDING INTERENGAGED EXTERNAL AND INTERNAL THREADS HOLDING THE PIPES AGAINST SEPARATION, SAID PIN MEMBER BEING SCREWED ABOUT SAID AXIS LONGITUDINALLY FORWARDLY INTO SAID BOX MEMBER, SAID BOX MEMBER HAVING AN ANNULAR RECESS OPENING RADIALLY INWADRLY AND EXTENDING ABOUT THE FREE TERMINAL FORWARD END OF SAID PIN MEMBER, AND SAID BOX MEMBER HAVING AN ANNULAR SHOULDER ATT THE FORWARD END OF THE RECESS AND SPACED FORWARDLY OF AND FACING SAID FORWARD END OF THE PIN MEMBER, AND AN ANNULAR CONTINUOUS RING HAVING SUBSTANTIALLY THE PHYSICAL CHARACTERISTICS OF TETRAFLUOROETHYLENE RECEIVED IN THE RECESS AND IN THE SPACE BETWEEN THE FORWARD END OF THE PIN MEMBER AND SAID SHOULDER, SAID RING BEING COMPRESSED
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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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |