US2616876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing rubbery substances with meta-dinitroso aromatic compounds
Assignee: Standard Oil Development Co
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Filing: 1949-05-06
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Granted: 1952-11-04
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Expires: 1969-05-06
Abstract
No abstract record available.
Inventors
- 👤 Jr John Rehner
- 👤 Paul J Flory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:42
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A CURING PROCESS FOR THE DESTRUCTION OF COLD FLOW AND ESTABLISHMENT OF DEFINITE TENSILE STRENGTHS IN VULCANIZABLE RUBBERY ELASTOMERS CHARACTERIZED BY IODINE NUMBERS WITHIN THE RANGE BETWEEN 0.5 AND 340, THE MOLECULES OF WHICH HAVE A HIGH MOLECULAR WEIGHT HYDROCARBON CHAIN STRUCTURE, COMPRISING THE STEPS OF MIXING INTO SAID ELASTOMER FROM 0.5 PART TO 5 PARTS (PER HUNDRED OF ELASTOMER) OF A META-DINITROSO COMPOUND HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
68 words
A CURING PROCESS FOR THE DESTRUCTION OF COLD FLOW AND ESTABLISHMENT OF DEFINITE TENSILE STRENGTHS IN VULCANIZABLE RUBBERY ELASTOMERS CHARACTERIZED BY IODINE NUMBERS WITHIN THE RANGE BETWEEN 0.5 AND 340, THE MOLECULES OF WHICH HAVE A HIGH MOLECULAR WEIGHT HYDROCARBON CHAIN STRUCTURE, COMPRISING THE STEPS OF MIXING INTO SAID ELASTOMER FROM 0.5 PART TO 5 PARTS (PER HUNDRED OF ELASTOMER) OF A META-DINITROSO COMPOUND HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US1984417A
Cited
US2445794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |