US3134496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure member gasket compositions
Assignee: Continental Can Co Inc
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Filing: 1961-09-11
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Granted: 1964-05-26
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Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Alfred W Kehe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:47
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/0442
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
A CLOSURE MEMBER FOR USE WITH A PRODUCT CONTAINER TO EFFECT A HERMETIC SEAL, SAID CLOSURE MEMBER COMPRISING A PANEL PORTION INCLUDING MEANS TO OBTAIN MECHANICAL ENGAGEMENT WITH A CONTAINER, THE INNER SURFACE OF SAID PANEL PORTION NORMALLY EXPOSED TO PRODUCT IN A CONTAINER HAVING APPLIED THERETO A CONTINUOUS LACQUER-TYPE COATING, AND A RESIN BASE GASKET ON SAID INNER SURFACE IN CONTACT WITH SAID COATING TO EFFECT A HERMETIC SEAL BETWEEN SAID CLOSURE MEMBER AND A CONTAINER, THE RESIN BASE OF SAID GASKET CONSISTING ESSENTIALLY OF A HOMOPOLYMERIC MIXTURE OF CHLORINATED POLYETHYLENE AND POLYVINYL CHLORIDE, SAID CHLORINATED POLYETHYLENE HAVING A CHLORINE CONTENT OF FROM ABOUT 40% TO ABOUT 50% BY WEIGHT, THE AMOUNT OF POLYVINYL CHLORIDE PRESENT RANGING FROMABOUT 30% TO 50% OF THE RESIN BASE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |