US2576945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic rubber compositions
Assignee: Individual
•
Filing: 1945-12-20
•
Granted: 1951-12-04
•
Expires: 1965-12-20
Abstract
No abstract record available.
Inventors
- 👤 Walter C Klingel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:50
CPC Classifications
C; C09; C09J; C09J193/00; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31844
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
A METHOD FOR PLASTICIZING PLASTIC COMPOSITIONS CONTAINING MATERIAL SELECTED FROM THE CLASS CONSISTING OF NATURAL RUBBER, CHLORINATED RUBBER, RECLAIMED RUBBER, POLYBUTADIENE, POLYISOPRENE, COPOLYMER OF BUTADIENE AND METHACRYLIC NITRILE, COPOLYMER OF BUTADIENE AND ACRYLONITRILE, AND COPOLYMER OF BUTADIENE AND STYRENE TO IMPROVE THE WORKING PROPERTIES THEREOF AND TO PRODUCE TACKINESS THEREIN PRIOR TO AND DURING CURING AND SETTING REACTTIONS, WHICH COMPRISES TREATING THE MATERIAL WITH FROM 1 TO 10 PERCENT BY WEIGHT OF GUAIAC RESIN BASED ON THE REACTING INGREDIENTS IN THE COMPOSITION, MASTICATING THE ADMIXTURE TO OBTAIN A HOMOGENEOUS MASS AND SUBJECTING THE MASS TO HEAT AND PRESSURE SUFICIENT TO PROVIDE A SETTING REACTION THEREIN.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-03 | 1955-06-04 | 1955-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-03 | 1959-06-04 | 1959-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-03 | 1963-06-04 | 1963-12-04 | $7700.00 | Window Closed / Lapsed |