US3362050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concentric tube releasable clasp
Assignee: Norco Inc
•
Filing: 1966-04-15
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Granted: 1968-01-09
•
Expires: 1986-04-15
Abstract
No abstract record available.
Inventors
- 👤 John J Mccarthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:01
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/22; F16B45/00; F16B45/04; F16B45/045; F16B45/049; F16B45/051; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45513; Y10T24/45518; Y10T24/45602; Y10T24/45723; Y10T24/45743; Y10T403/00; Y10T403/59; Y10T403/599
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A CONCENTRIC-TUBE RELEASABLE CLASP COMPRISING, IN COMBINATION: (A) A PAIR OF INNER AND OUTER, COAXIAL, TELESCOPICALLY ARRANGED TUBES HAVING ONE PAIR OF CORRESPONDING END PORTIONS LOCATED IN JUXTAPOSITION TO EACH OTHER, (B) SAID TUBES BEING RELATIVELY MOVABLE AXIALLY, (C) SAID END PORTIONS PROVIDING AN ENTRY MOUTH STRUCTURE CONSTITUTED OF A PAIR OF DIAMETRICALLY OPPOSITE NOTCHES EACH CHARACTERIZED BY DIVERGENT EDGES ADAPTED FOR ENGAGEMENT BY A DIAMETRIC BAR TO GUIDE THE BAR TO THE CENTER OF THE MOUTH STRUCTURE, (D) SAID END PORTION OF THE INNER TUBE HAVING AT LEAST ONE PAIR OF SAID DIVERGENT EDGES FORMING PARTS OF BOTH NOTCHES, (E) SAID END PORTION OF ONE OF THE TUBES HAVING A PAIR OF STRAIGHT EDGES PARALLEL TO THE COMMON AXIS OF THE TUBES, (F) SAID END PORTION OF THE OTHER TUBE HAVING SLOTS CHARACTERIZED BY OPPOSITE PARALLEL EDGES,
Claim 2
Dependent Claim
138 words
A CONCENTRIC-TUBE RELEASABLE CLASP COMPRISING, IN COMBINATION: (A) A PAIR OF INNER AND OUTER, COAXIAL, TELESCOPICALLY ARRANGED TUBES HAVING ONE PAIR OF CORRESPONDING END PORTIONS LOCATED IN JUXTAPOSITION TO EACH OTHER, (B) SAID TUBES BEING RELATIVELY MOVABLE AXIALLY, (C) SAID END PORTIONS PROVIDING AN ENTRY MOUTH STRUCTURE CONSTITUTED OF A PAIR OF DIAMETRICALLY OPPOSITE NOTCHES EACH CHARACTERIZED BY DIVERGENT EDGES ADAPTED FOR ENGAGEMENT BY A DIAMETRIC BAR TO GUIDE THE BAR TO THE CENTER OF THE MOUTH STRUCTURE, (D) SAID END PORTION OF THE INNER TUBE HAVING AT LEAST ONE PAIR OF SAID DIVERGENT EDGES FORMING PARTS OF BOTH NOTCHES, (E) SAID END PORTION OF ONE OF THE TUBES HAVING A PAIR OF STRAIGHT EDGES PARALLEL TO THE COMMON AXIS OF THE TUBES, (F) SAID END PORTION OF THE OTHER TUBE HAVING SLOTS CHARACTERIZED BY OPPOSITE PARALLEL EDGES,
References Cited (Backward Citations)
US2826798A
Cited
US3271510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |