Patent US1770805A successfully refreshed from Google Patents.
US3476413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction-type joint with uniform wall thickness
Assignee: Kobe Inc
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Filing: 1966-02-01
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Granted: 1969-11-04
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Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Coberly
- 👤 Francis Barton Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:40
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/004; F16L37/00; F16L37/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49945; Y10T403/00; Y10T403/55; Y10T403/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A HIGH-STRENGTH, FRICTION-TYPE JOINT FOR CONNECTING AN ELONGATED ELEMENT, SUCH AS A TUBING OR ROD, TO ANOTHER ELEMENT, INCLUDING: (A) AN OUTER TUBULAR MEMBER; (B) AN INNER MEMBER; (C) ONE OF SAID MEMBERS BEING AN END PORTION OF SAID ELONGATED ELEMENT; (D) AN INNER, AXIALLY TAPERED SURFACE WITHIN SAID OUTER MEMBER; (E) SAID OUTER MEMBER HAVING A SUBSTANTIALLY CONSTANT WALL THICKNESS THROUGHOUT AT LEAST A MAJOR PORTION OF THE LENGTH OF SAID INNER TAPERED SURFACE; (F) A COMPLEMENTARY OUTER, AXIALLY TAPERED SURFACE ON SAID INNER MEMBER;
Claim 2
Dependent Claim
86 words
A HIGH-STRENGTH, FRICTION-TYPE JOINT FOR CONNECTING AN ELONGATED ELEMENT, SUCH AS A TUBING OR ROD, TO ANOTHER ELEMENT, INCLUDING: (A) AN OUTER TUBULAR MEMBER; (B) AN INNER MEMBER; (C) ONE OF SAID MEMBERS BEING AN END PORTION OF SAID ELONGATED ELEMENT; (D) AN INNER, AXIALLY TAPERED SURFACE WITHIN SAID OUTER MEMBER; (E) SAID OUTER MEMBER HAVING A SUBSTANTIALLY CONSTANT WALL THICKNESS THROUGHOUT AT LEAST A MAJOR PORTION OF THE LENGTH OF SAID INNER TAPERED SURFACE; (F) A COMPLEMENTARY OUTER, AXIALLY TAPERED SURFACE ON SAID INNER MEMBER;
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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) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |