Patent US4591689A successfully refreshed from Google Patents.
Patent US3245566A successfully refreshed from Google Patents.
US3245566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure cap with phenolic resin and butadiene-acrylonitrile copolymer modified vinyl plastisol resin gasket
Assignee: OI Glass Inc
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Filing: 1963-05-17
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Granted: 1966-04-12
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Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 Paul J Szalay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:39
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L61/00; C08L61/04; C08L61/06; C08L9/00; C08L9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A CLOSURE CAP IN SEALED RELATION WITH A CONTAINER AND HAVING A VINYL CHLORIDE PLASTISOL GASKET DISPOSED THEREIN, AND WHERE SAID GASKET HAS POOR IMPACT RESISTANCE AND RESILIENCY CAUSING LEAKAGES AND LOSS OF VACUUM IN THE CONTAINER WHEN THE CLOSURE CAP IS SUBJECT TO IMPACT, THE IMPROVEMENT IN ACCORDANCE WITH WHICH THE LEAKAGES AND LOSS OF VACUUM ARE SUBSTANTIALLY ELIMINATED WHEN THE CLOSURE CAP IS SUBJECTED TO IMPACT AND WHICH COMPRISES HAVING FROM ABOUT 1 TO 5 PARTS BY WEIGHT OF A LIQUID BUTADIENE-ACRYLONITRILE COPOLYMER AND ABOUT 1 TO 5 PARTS BY WEIGHT OF A PHENOL-FORMALDEHYDE NOVOLAK COPOLYMER PRESENT IN SAID VINYL CHLORIDE PLASTISOL GASKET, SAID COPOLYMERS BEING PRESENT TOGETHER IN AN AMOUNT SUFFICIENT TO IMPROVE THE IMPACT RESISTANCE AND RESILIENCY OF SAID GASKET, SAID PARTS BY WEIGHT BEING BASED ON 100 PARTS BY WEIGHT OF VINYL CHLORIDE RESIN IN SAID PLASTISOL.
Claim 2
Dependent Claim
143 words
IN A CLOSURE CAP IN SEALED RELATION WITH A CONTAINER AND HAVING A VINYL CHLORIDE PLASTISOL GASKET DISPOSED THEREIN, AND WHERE SAID GASKET HAS POOR IMPACT RESISTANCE AND RESILIENCY CAUSING LEAKAGES AND LOSS OF VACUUM IN THE CONTAINER WHEN THE CLOSURE CAP IS SUBJECT TO IMPACT, THE IMPROVEMENT IN ACCORDANCE WITH WHICH THE LEAKAGES AND LOSS OF VACUUM ARE SUBSTANTIALLY ELIMINATED WHEN THE CLOSURE CAP IS SUBJECTED TO IMPACT AND WHICH COMPRISES HAVING FROM ABOUT 1 TO 5 PARTS BY WEIGHT OF A LIQUID BUTADIENE-ACRYLONITRILE COPOLYMER AND ABOUT 1 TO 5 PARTS BY WEIGHT OF A PHENOL-FORMALDEHYDE NOVOLAK COPOLYMER PRESENT IN SAID VINYL CHLORIDE PLASTISOL GASKET, SAID COPOLYMERS BEING PRESENT TOGETHER IN AN AMOUNT SUFFICIENT TO IMPROVE THE IMPACT RESISTANCE AND RESILIENCY OF SAID GASKET, SAID PARTS BY WEIGHT BEING BASED ON 100 PARTS BY WEIGHT OF VINYL CHLORIDE RESIN IN SAID PLASTISOL.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |