Patent US701593A successfully refreshed from Google Patents.
Patent US3367904A successfully refreshed from Google Patents.
US3367904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating rubbers with nitrosoanilinonitroalkanes
Assignee: Monsanto Co
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Filing: 1963-10-01
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Granted: 1968-02-06
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Expires: 1983-10-01
Abstract
No abstract record available.
Inventors
- 👤 Darrell D Mullins
- 👤 Lloyd A Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:52
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS WHICH COMPRISES HEATING AND MASTICATING AT 300-370*F. A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, SYNTHETIC RUBBERY HOMOPOLYMERS OF ALIPHATIC CONJUGATED DIOLEFIN HYDROCARBONS, SYNTHETIC RUBBERY COPOLYMERS CONTAINING AT LEAST 50* OF AN ALIPHATIC CONJUGATED DIOLEFIN HYDROCARBON COPOLYMERIZED WITH CORRESPONDINGLY NOT MORE THAN 50% OF A COPOLYMERIZABLE MONOETHYLENICALLY UNSATURATED COMPOUND, BUTYL RUBBER WHICH IS A COPOLYMER OF AT LEAST 85% ISOBUTYLENE AND A SMALL AMOUNT, NOT MORE THAN 15%, OF DIOLEFIN, AND MIXTURES OF SUCH RUBBERS, WITH A RELATIVELY LARGE AMOUNT OF RUBBER REINFORCING PIGMENT SELECTED FROM THE GROUP CONSISTING OF CARBON BLACK AND REINFORCING SILICA AND 0.15.0% OF THE RUBBER OF A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
110 words
A PROCESS WHICH COMPRISES HEATING AND MASTICATING AT 300-370*F. A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, SYNTHETIC RUBBERY HOMOPOLYMERS OF ALIPHATIC CONJUGATED DIOLEFIN HYDROCARBONS, SYNTHETIC RUBBERY COPOLYMERS CONTAINING AT LEAST 50* OF AN ALIPHATIC CONJUGATED DIOLEFIN HYDROCARBON COPOLYMERIZED WITH CORRESPONDINGLY NOT MORE THAN 50% OF A COPOLYMERIZABLE MONOETHYLENICALLY UNSATURATED COMPOUND, BUTYL RUBBER WHICH IS A COPOLYMER OF AT LEAST 85% ISOBUTYLENE AND A SMALL AMOUNT, NOT MORE THAN 15%, OF DIOLEFIN, AND MIXTURES OF SUCH RUBBERS, WITH A RELATIVELY LARGE AMOUNT OF RUBBER REINFORCING PIGMENT SELECTED FROM THE GROUP CONSISTING OF CARBON BLACK AND REINFORCING SILICA AND 0.15.0% OF THE RUBBER OF A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US3151161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |