US3847183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure
Assignee: Individual
•
Filing: 1972-11-22
•
Granted: 1974-11-12
•
Expires: 1992-11-22
Abstract
Abstract A closure is formed of a polymeric composition exhibiting plastic memory. The closure comprises a substantially tubular member having at least one open end and the interior wall provided with a network of protuberances such as annular projecting ribs formed integrally with the closure. The closure is characterized by being capable of changing dimensions between a heat stable condition and a heat unstable condition.
Inventors
- 👤 V Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:36
CPC Classifications
B; B65; B65D; B65D59/00; B65D59/06; B29; B29C; B29C61/00; B29C61/06; B29C61/0608; Y; Y10; Y10S; Y10S174/00; Y10S174/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
60 words
A CLOSURE FORMED OF A POLYMERIC COMPOSITION EXHIBITING PLASTIC MEMORY COMPRISING A SUBSTANTIALLY TUBULAR MEMBER HAVING AT LEAST ONE OPEN END AND THE INTERIOR WALL PROVIDED WITH A NETWORK OF PROTUBERANCES FORMED INTEGRALLY WITH THE CLOSURE AND OF THE SAME POLYMERIC COMPOSITION AND BEING SUBSTANTIALLY NORMAL TO THE LONGITUDINAL AXIS OF THE CLOSURE, SAID CLOSURE INCLUDING SAID PROTUBERANCES CHARACTERIZED BY
Claim 2
Dependent Claim
60 words
A CLOSURE FORMED OF A POLYMERIC COMPOSITION EXHIBITING PLASTIC MEMORY COMPRISING A SUBSTANTIALLY TUBULAR MEMBER HAVING AT LEAST ONE OPEN END AND THE INTERIOR WALL PROVIDED WITH A NETWORK OF PROTUBERANCES FORMED INTEGRALLY WITH THE CLOSURE AND OF THE SAME POLYMERIC COMPOSITION AND BEING SUBSTANTIALLY NORMAL TO THE LONGITUDINAL AXIS OF THE CLOSURE, SAID CLOSURE INCLUDING SAID PROTUBERANCES CHARACTERIZED BY
Claim 3
Dependent Claim
13 words
A closure according to claim 1 wherein said protuberances comprise annular projecting ribs.
Claim 4
Dependent Claim
31 words
A closure according to claim 2 wherein said ribs comprise closely spaced, circumferential threads and at least one circumferential ring having a relatively wider flat and greater depth than said threads.
Claim 5
Dependent Claim
14 words
A closure according to claim 1 wherein said polymeric composition comprises a cross-linked polyolefin.
Claim 6
Dependent Claim
14 words
A closure according to claim 1 wherein said polymeric composition comprises a cross-linked polyethylene.
Claim 7
Dependent Claim
87 words
A closure formed of cross-linked polyolefin exhibiting plastic memory comprising a substantially tubular member having at least one open end and the interior wall provided with spaced circumferential rings and a plurality of circumferential threads disposed between said rings, said rings and said threads projecting from said interior wall and formed integrally with the closure, said rings having a relatively wider flat and greater depth than said threads, said closure characterized by being capable of changing dimensions between a heat stable condition to a heat unstable condition.
Claim 8
Dependent Claim
87 words
A closure formed of cross-linked polyolefin exhibiting plastic memory comprising a substantially tubular member having at least one open end and the interior wall provided with spaced circumferential rings and a plurality of circumferential threads disposed between said rings, said rings and said threads projecting from said interior wall and formed integrally with the closure, said rings having a relatively wider flat and greater depth than said threads, said closure characterized by being capable of changing dimensions between a heat stable condition to a heat unstable condition.
Claim 9
Dependent Claim
13 words
A closure according to claim 6 wherein said polyolefin comprises a cross-linked polyethylene.
References Cited (Backward Citations)
US3037529A
Cited
US3448182A
Cited
US3620896A
Cited
US3668754A
Cited
US3713463A
Cited
US3741422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |