US2734885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
US2734885A - - Google Patents
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:59
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/21; C08K5/04; C08K5/09; C08K5/095; C08K5/10; C08K5/11; C08K5/20; C08K5/34; C08K5/3467; C08K5/3477
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PROCESS WHICH COMPRISES MIXING RUBBER SELECTED FROM THE GROUP CONSISTING OF NAUTRAL RUBBER, SYNTHETIC RUBBERY HOMOPOLYMERS OF ALIPHATIC CONJUGATED DIOLEFIN HYDROCARBONS, AND SYNTHETIC RUBBERY COPOLYMERS OF SAID DIOLEFIN HYDROCARBONS WITH COPOLYMERIZABLE MONOOLEFINIC COMPOUNDS WITH A RELATIVELY LARGE AMOUNT OF RUBBER-REINFORCING CARBON BLACK AND FROM 1 TO 5 PARTS, PER 100 PARTS OF SAID RUBBER, OF A MALONYL COMPOUND HAVING TWO ATOMS OF A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE ON THE ALIPHATIC CARBON ATOM ADJACENT TO THE TWO CARBONYL GROUPS, 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
127 words
A PROCESS WHICH COMPRISES MIXING RUBBER SELECTED FROM THE GROUP CONSISTING OF NAUTRAL RUBBER, SYNTHETIC RUBBERY HOMOPOLYMERS OF ALIPHATIC CONJUGATED DIOLEFIN HYDROCARBONS, AND SYNTHETIC RUBBERY COPOLYMERS OF SAID DIOLEFIN HYDROCARBONS WITH COPOLYMERIZABLE MONOOLEFINIC COMPOUNDS WITH A RELATIVELY LARGE AMOUNT OF RUBBER-REINFORCING CARBON BLACK AND FROM 1 TO 5 PARTS, PER 100 PARTS OF SAID RUBBER, OF A MALONYL COMPOUND HAVING TWO ATOMS OF A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE ON THE ALIPHATIC CARBON ATOM ADJACENT TO THE TWO CARBONYL GROUPS, 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) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |