US2880901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled torque gasket compositions
Assignee: White Cap Co
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Filing: 1956-04-27
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Granted: 1959-04-07
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Expires: 1976-04-27
Abstract
No abstract record available.
Inventors
- 👤 Donald H Zipper
- 👤 Harold W Unger
- 👤 John J Moloney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:57
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
A ROTABLE CAP ADAPTED FOR APPLICATION TO A CONTAINER IN SEALING RELATION THEREWITH, SAID CAP CARRYING A PLASTISOL SEALING GASKET HAVING AS ITS PRINCIPAL INGREDIENTS A POLYVINYL CHLORIDE BASE RESIN AND RESIN PLASTICIZER WITH THE OUTER SURFACE OF SAID GASKET BEING ADAPTED FOR FRICTIONAL SEALING ENGAGEMENT WITH A SURFACE OF SAID CONTAINER, SAID OUTER SURFACE BEING PROVIDED WITH A COATING OF VISCOUS LIQUID POLYBUTENE.
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) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |