Patent US3049505A successfully refreshed from Google Patents.
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
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Filing: 1958-09-24
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Granted: 1962-08-14
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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 04:37
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.
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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) | 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 |