US2715650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber treatment
Assignee: Uniroyal Inc
•
Filing: 1954-01-12
•
Granted: 1955-08-16
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Expires: 1974-01-12
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Doak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:32
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PROCESS WHICH COMPRISES MIXING RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, SYNTHETIC RUBBERY HOMOPOLYMERS OF ALIPHATIC CONJUGATED DIOLEFIN HYDROCARBONS AND SYNTHETIC RUBBERY COPOLYMERS OF SAID DIOLEFIN HYDROCARBONS WITH COPOLYMERIZABLE MONOOLEFINIC COMPOUNDS, WHICH COPOLYMERS CONTAIN AT LEAST 25% OF COMBINED DIOLEFIN, WITH A RELATIVELY LARGE AMOUNT OF RUBBER-REINFORCING CARBON BLACK, AND NITRITE OF A METAL SELECTED FROM THE ALKALI METALS AND THE ALKALINE-EARTH METALS IN AMOUNT EQUAL TO FROM 0.5 TO 3 PARTS PER 100 PARTS OF SAID RUBBER, HEATING THE MIXTURE AT A TEMPERATURE OF AT LEAST 275* F. BUT BELOW THAT AT WHICH THE RUBBER WOULD BE HARMED, MASTICATING THE MIXTURE AND COMPLETING INCORPORATION OF VULCANIZING AND OTHER DESIRED INGREDIENTS, SHAPING THE MASS, AND VULCANIZING THE RESULTING SHAPED MASS.
Claim 2
Dependent Claim
123 words
A PROCESS WHICH COMPRISES MIXING RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, SYNTHETIC RUBBERY HOMOPOLYMERS OF ALIPHATIC CONJUGATED DIOLEFIN HYDROCARBONS AND SYNTHETIC RUBBERY COPOLYMERS OF SAID DIOLEFIN HYDROCARBONS WITH COPOLYMERIZABLE MONOOLEFINIC COMPOUNDS, WHICH COPOLYMERS CONTAIN AT LEAST 25% OF COMBINED DIOLEFIN, WITH A RELATIVELY LARGE AMOUNT OF RUBBER-REINFORCING CARBON BLACK, AND NITRITE OF A METAL SELECTED FROM THE ALKALI METALS AND THE ALKALINE-EARTH METALS IN AMOUNT EQUAL TO FROM 0.5 TO 3 PARTS PER 100 PARTS OF SAID RUBBER, HEATING THE MIXTURE AT A TEMPERATURE OF AT LEAST 275* F. BUT BELOW THAT AT WHICH THE RUBBER WOULD BE HARMED, MASTICATING THE MIXTURE AND COMPLETING INCORPORATION OF VULCANIZING AND OTHER DESIRED INGREDIENTS, SHAPING THE MASS, AND VULCANIZING THE RESULTING SHAPED MASS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |