US3049505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical blend of a polyurethane rubber with blends of a graft copolymer of polybutadiene, styrene, and acrylonitrile
Assignee: Borg Warner Corp
•
Filing: 1958-09-24
•
Granted: 1962-08-14
•
Expires: 1978-09-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Grabowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:47
CPC Classifications
C; C08; C08L; C08L75/00; C08L75/04; C08L55/00; C08L55/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A MECHANICAL BLEND COMPRISING (1) A CROSS LINKED, SOLID ELASTOMERIC REACTION PRODUCT OF A POLYISICYANATE WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYESTERAMIDES AND POLALKYLENE ETHER GLYCOLS AND (2) A GRAFT COPOLYMER OF AN ALIPHATIC CONJUGATED DIOLEFINE HYDROCARBON POLYMER, A MONOVINYL MONOCYCLIC AROMATIC HYDROCARBON AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE AND ETHACRYLONITRILE.
Claim 2
Dependent Claim
60 words
A MECHANICAL BLEND COMPRISING (1) A CROSS LINKED, SOLID ELASTOMERIC REACTION PRODUCT OF A POLYISICYANATE WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYESTERAMIDES AND POLALKYLENE ETHER GLYCOLS AND (2) A GRAFT COPOLYMER OF AN ALIPHATIC CONJUGATED DIOLEFINE HYDROCARBON POLYMER, A MONOVINYL MONOCYCLIC AROMATIC HYDROCARBON AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE AND ETHACRYLONITRILE.
References Cited (Backward Citations)
GB644829A
Cited
GB649928A
Cited
US2694692A
Cited
US2802808A
Cited
US2905652A
Cited
US2905582A
Cited
US2820773A
Cited
US2851436A
Cited
US2884402A
Cited
US2908661A
Cited
US2862907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |