Patent US3390897A successfully refreshed from Google Patents.
US3390897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector
Assignee: Esquire Inc
•
Filing: 1965-08-13
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Granted: 1968-07-02
•
Expires: 1985-08-13
Abstract
No abstract record available.
Inventors
- 👤 Moore Buell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:10
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; F16L37/00; F16L37/08; F16L37/12; F16L37/14; F16L37/142; F16L37/146; F16B; F16B2200/00; F16B2200/10; Y; Y10; Y10T; Y10T403/00; Y10T403/51; Y10T403/55; Y10T403/556; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A DEVICE FOR CONNECTING TWO LENGTHS OF GENERALLY HOLLOW PIPE COMPRISING IN COMBINATION: A FIRST TUBULAR MEMBER HAVING A BORE THERETHROUGH AND AN EXTERNALLY THREADED PORTION OF CONSTANT OUTSIDE DIAMETER, AND A PORTION OF PROGRESSIVELY SMALLER DIAMETER TAPERING THEREFROM, SAID TAPERED PORTION INCLUDING A TRANSVERSE HOLE THEREIN OFFSET FROM THE LONGITUDINAL AXIS OF THE MEMBER; A SECOND TUBULAR MEMBER HAVING A TAPERED BORE THERETHROUGH COMPLEMENTARY TO SAID TAPERED PORTION OF SAID FIRST MEMBER AND A COLLAR PORTION, AND AN EXTERNALLY THREADED PORTION OF CONSTANT OUTSIDE DIAMETER EQUAL TO THE DIAMETER OF THE EXTERNALLY THREADED PORTION OF SAID FIRST TUBULAR MEMBER, SAID TAPERED PORTION OF SAID FIRST MEMBER FITTING SNUGLY WITHIN SAID TAPERED BORE OF SAID SECOND MEMBER, SAID COLLAR PORTION BEING OF LARGER OUTSIDE DIAMETER THAN SAID EXTERNALLY THREADED PORTION, SAID COLLAR DIAMETER BEING SUBSTANTIALLY EQUAL TO THE OUTSIDE DIAMETER OF THE TWO LENGTHS OF HOLLOW PIPE SO THAT THE ASSEMBLY OF PIPES AND TUBULAR MEMBERS HAS A SUBSTANTIALLY CONTINUOUS OUTER SURFACE OF SUBSTANTIALLY CONSTANT DIAMETER, SAID COLLAR PORTION HAVING A TRANSVERSE HOLE THEREIN OFFSET FROM THE LONGITUDINAL AXIS OF SAID SECOND MEMBER IN THE SAME RELATION AS THE HOLE IN SAID FIRST MEMBER; AND
Claim 2
Independent Claim
195 words
A DEVICE FOR CONNECTING TWO LENGTHS OF GENERALLY HOLLOW PIPE COMPRISING IN COMBINATION: A FIRST TUBULAR MEMBER HAVING A BORE THERETHROUGH AND AN EXTERNALLY THREADED PORTION OF CONSTANT OUTSIDE DIAMETER, AND A PORTION OF PROGRESSIVELY SMALLER DIAMETER TAPERING THEREFROM, SAID TAPERED PORTION INCLUDING A TRANSVERSE HOLE THEREIN OFFSET FROM THE LONGITUDINAL AXIS OF THE MEMBER; A SECOND TUBULAR MEMBER HAVING A TAPERED BORE THERETHROUGH COMPLEMENTARY TO SAID TAPERED PORTION OF SAID FIRST MEMBER AND A COLLAR PORTION, AND AN EXTERNALLY THREADED PORTION OF CONSTANT OUTSIDE DIAMETER EQUAL TO THE DIAMETER OF THE EXTERNALLY THREADED PORTION OF SAID FIRST TUBULAR MEMBER, SAID TAPERED PORTION OF SAID FIRST MEMBER FITTING SNUGLY WITHIN SAID TAPERED BORE OF SAID SECOND MEMBER, SAID COLLAR PORTION BEING OF LARGER OUTSIDE DIAMETER THAN SAID EXTERNALLY THREADED PORTION, SAID COLLAR DIAMETER BEING SUBSTANTIALLY EQUAL TO THE OUTSIDE DIAMETER OF THE TWO LENGTHS OF HOLLOW PIPE SO THAT THE ASSEMBLY OF PIPES AND TUBULAR MEMBERS HAS A SUBSTANTIALLY CONTINUOUS OUTER SURFACE OF SUBSTANTIALLY CONSTANT DIAMETER, SAID COLLAR PORTION HAVING A TRANSVERSE HOLE THEREIN OFFSET FROM THE LONGITUDINAL AXIS OF SAID SECOND MEMBER IN THE SAME RELATION AS THE HOLE IN SAID FIRST MEMBER; AND
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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) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |