US2657162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of bonded rubber articles
Assignee: Dunlop Rubber Co Ltd
•
Filing: 1952-01-30
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Granted: 1953-10-27
•
Expires: 1972-01-30
Abstract
No abstract record available.
Inventors
- 👤 Tibenham Frederick Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:25
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/3183; Y10T428/31855; Y10T428/31859; Y10T428/31877
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A PROCESS FOR MAKING COMPOSITE ARTICLES WHICH COMPRISES REDUCING THE UNSATURATION OF THE SURFACE OF A SOFT-VULCANIZED RUBBER COMPONENT TO FORM A HARDENED SURFACE BRINGING SAID MODIFIED SURFACE INTO JUXTAPOSITION WITH A RIGID COMPONENT WITH A BONDING LAYER THEREBETWEEN COMPRISING A POLYVINYL ACETAL AND A HARDENABLE ALDEHYDE RESIN, AND HARDENING THE RESIN WHILE PRESSING THE RUBBER AGAINST THE RIGID COMPONENT.
Claim 2
Dependent Claim
60 words
A PROCESS FOR MAKING COMPOSITE ARTICLES WHICH COMPRISES REDUCING THE UNSATURATION OF THE SURFACE OF A SOFT-VULCANIZED RUBBER COMPONENT TO FORM A HARDENED SURFACE BRINGING SAID MODIFIED SURFACE INTO JUXTAPOSITION WITH A RIGID COMPONENT WITH A BONDING LAYER THEREBETWEEN COMPRISING A POLYVINYL ACETAL AND A HARDENABLE ALDEHYDE RESIN, AND HARDENING THE RESIN WHILE PRESSING THE RUBBER AGAINST THE RIGID COMPONENT.
References Cited (Backward Citations)
US2411878A
Cited
US2429897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |