US2771777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of testing antiozodant chemicals
Assignee: Individual
•
Filing: 1955-09-29
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Granted: 1956-11-27
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Expires: 1975-09-29
Abstract
No abstract record available.
Inventors
- 👤 Albert R Allison
- 👤 Alvin D Delman
- 👤 Bernard B Simms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:55
CPC Classifications
G; G01; G01N; G01N11/00; Y; Y10; Y10S; Y10S526/00; Y10S526/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF TESTING THE EFFICACY OF ANTIOZODANT MATERIALS IN THE INHIBITION OF OZONE DEGRADATION OF ELASTOMERS WHICH COMPRISES THE STEPS OF PASSING OZONE THROUGH A FIRST SOLUTION OF AN ELASTOMER HAVING A GIVEN VISCOSITY, THE SOLVENT THEREOF BEING NON-REACTIVE WITH SAID OZONE; INDICATING THE VISCOSITY OF THE OZONIZED FIRST SOLUTION; PASSING OZONE THROUGH A SECOND SOLUTION OF SAID ELASTOMER HAVING SAID GIVEN VISCOSITY, SAID SECOND SOLUTION ALSO CONTAINING A SMALL AMOUNT OF AN ANTIOZODANT MATERIAL; AND INDICATING THE VISOSITY OF THE OZONIZED SECOND SOLUTION WHEREBY A RELATIONSHIP EXISTS BETWEEN THE RESPECTIVE DIFFERENCES IN VISCOSITIES OF SAID FIRST AND SECOND OZONIZED SOLUTIONS FROM SAID GIVEN VISCOSITY.
Claim 2
Independent Claim
106 words
A METHOD OF TESTING THE EFFICACY OF ANTIOZODANT MATERIALS IN THE INHIBITION OF OZONE DEGRADATION OF ELASTOMERS WHICH COMPRISES THE STEPS OF PASSING OZONE THROUGH A FIRST SOLUTION OF AN ELASTOMER HAVING A GIVEN VISCOSITY, THE SOLVENT THEREOF BEING NON-REACTIVE WITH SAID OZONE; INDICATING THE VISCOSITY OF THE OZONIZED FIRST SOLUTION; PASSING OZONE THROUGH A SECOND SOLUTION OF SAID ELASTOMER HAVING SAID GIVEN VISCOSITY, SAID SECOND SOLUTION ALSO CONTAINING A SMALL AMOUNT OF AN ANTIOZODANT MATERIAL; AND INDICATING THE VISOSITY OF THE OZONIZED SECOND SOLUTION WHEREBY A RELATIONSHIP EXISTS BETWEEN THE RESPECTIVE DIFFERENCES IN VISCOSITIES OF SAID FIRST AND SECOND OZONIZED SOLUTIONS FROM SAID GIVEN VISCOSITY.
References Cited (Backward Citations)
US2641128A
Cited
US2709359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |