US2963462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butyl rubber containing a dimethylol alkyl phenol, a friedel-crafts catalyst and a nitro-paraffin and method of curing butyl rubber
Assignee: SCHENECTADY VARNISH COMPANY Inc
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Filing: 1957-08-27
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Granted: 1960-12-06
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Expires: 1977-08-27
Abstract
No abstract record available.
Inventors
- 👤 Clinton A Braidwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K3/00; C08K3/16; C08K5/16; C08K5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
AS A COMPOSITION OF MATTER A SYNTHETIC RUBBER COPOLYMER OF AN ISOOLEFIN HAVING FROM 4 TO 7 CARBON ATOMS WITH DROM 0.5 TO 10% OF A CONJUGATED DIOLEFIN HAVING FROM 4 TO 14 CARBON ATOMS, A 2,6-DIMETHYLOL-1-HYDROCARBON SUBSTITUTED PHENOL WHEREIN THE HYDROCARBON IS SELECTED FROM GROUP CONSISTING OF ALKYL,CYCLOALKY ARYL AND ARALKYL RADICALS, A FRIEDEL-CRAFTS METAL HALIDE AND A MEMBER OF THE GROUP CONSISTING OF A LIQUID NITROPARAFFIN CONTAINING 1 TO 6 CARBON ATOMS AND NITROCYCLOHEXANE.
Claim 2
Dependent Claim
76 words
AS A COMPOSITION OF MATTER A SYNTHETIC RUBBER COPOLYMER OF AN ISOOLEFIN HAVING FROM 4 TO 7 CARBON ATOMS WITH DROM 0.5 TO 10% OF A CONJUGATED DIOLEFIN HAVING FROM 4 TO 14 CARBON ATOMS, A 2,6-DIMETHYLOL-1-HYDROCARBON SUBSTITUTED PHENOL WHEREIN THE HYDROCARBON IS SELECTED FROM GROUP CONSISTING OF ALKYL,CYCLOALKY ARYL AND ARALKYL RADICALS, A FRIEDEL-CRAFTS METAL HALIDE AND A MEMBER OF THE GROUP CONSISTING OF A LIQUID NITROPARAFFIN CONTAINING 1 TO 6 CARBON ATOMS AND NITROCYCLOHEXANE.
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) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |