Patent US1704988A successfully refreshed from Google Patents.
Patent US2702286A successfully refreshed from Google Patents.
US2702286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber treatment
Assignee: Uniroyal Inc
•
Filing: 1953-07-14
•
Granted: 1955-02-15
•
Expires: 1973-07-14
Abstract
No abstract record available.
Inventors
- 👤 Alfred N Iknayan
- 👤 Lester C Peterson
- 👤 Harvey J Batts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:49
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025; C08L; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
AS A NEW COMPOSITION OF MATTER, A FIRM, EASILY PROCESSABLE, UNVULCANIZED, SULFUR-VULCANIZABLE, INTIMATE MIXTURE OF A RUBBERY COPOLYMER OF FROM 90 TO 99.5% OF ISOBUTYLENE AND CORRESPONDING FROM 10 TO 0.5% OF A CONJUGATED C4 TO C6 DIOLEFIN, WHICH COPOLYMER HAS BEEN HEATED AT A TEMPERATURE OF AT LEST 235* F. WITH A CURING AGENT IN SUCH AMOUNT AND UNDER SUCH CONDITIONS THAT AT LEAST 10% BUT NOT OVER 80% OF SAID COPOLYMER HAS BEEN RENDERED BENZOL-INSOLUBLE AND THE POTENTIAL CURING ACTION OF SAID CURING AGENT ON SAID COPOLYMER HAS BEEN SUBSTANTIALLY COMPLETELY EXHAUSTED, AND AT LEAST 25 PARTS OF A SUBSTANTIALLY NON-VOLATILE HYDROCRBON OIL PER 100 PARTS OF SAID COPOLYMER.
Claim 2
Dependent Claim
111 words
AS A NEW COMPOSITION OF MATTER, A FIRM, EASILY PROCESSABLE, UNVULCANIZED, SULFUR-VULCANIZABLE, INTIMATE MIXTURE OF A RUBBERY COPOLYMER OF FROM 90 TO 99.5% OF ISOBUTYLENE AND CORRESPONDING FROM 10 TO 0.5% OF A CONJUGATED C4 TO C6 DIOLEFIN, WHICH COPOLYMER HAS BEEN HEATED AT A TEMPERATURE OF AT LEST 235* F. WITH A CURING AGENT IN SUCH AMOUNT AND UNDER SUCH CONDITIONS THAT AT LEAST 10% BUT NOT OVER 80% OF SAID COPOLYMER HAS BEEN RENDERED BENZOL-INSOLUBLE AND THE POTENTIAL CURING ACTION OF SAID CURING AGENT ON SAID COPOLYMER HAS BEEN SUBSTANTIALLY COMPLETELY EXHAUSTED, AND AT LEAST 25 PARTS OF A SUBSTANTIALLY NON-VOLATILE HYDROCRBON OIL PER 100 PARTS OF SAID COPOLYMER.
References Cited (Backward Citations)
GB649975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |