Patent US3100121A successfully refreshed from Google Patents.
US3100121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint lock ring for thin walled cylinders
Assignee: Individual
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Filing: 1959-03-26
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Granted: 1963-08-06
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Expires: 1979-03-26
Abstract
No abstract record available.
Inventors
- 👤 Hillmer Willy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:57
CPC Classifications
F; F16; F16L; F16L21/00; F16L37/00; F16L37/08; F16L37/12; F16L37/1235
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
IN A PAIR OF AXIALLY ALIGNED CYLINDRICAL TUBULAR MEMBERS ADAPTED TO BE REMOVABLY SECURED TOGETHER, ONE OF SAID MEMBERS HAVING A MALE END PORTION ADAPTED TO TELESCOPE WITHIN A FEMALE END PORTION OF THE OTHER MEMBER, THE IMPROVEMENTS, COMPRISING; AN OUTWARDLY FACING RECTANGULAR CIRCUMFERENTIAL GROOVE IN SAID MALE PORTION, A LIKE INWARDLY FACING GROOVE IN SAID FEMALE PORTION ADAPTED TO BE ALIGNED WITH THE FIRST NAMED GROOVE, AND A SPLIT LOCK RING DISPOSED IN THE MATING GROOVES, SAID LOCK RING COMPRISING TWO PARTS ADAPTED TO BE ROTATED RELATIVELY IN A CIRCUMFERENTIAL DIRECTION FOR VARYING THE COMBINED WIDTH OF SAME IN A DIRECTION LONGITUDINALLY OF THE TUBULAR MEMBERS.
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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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |