Patent US3329650A successfully refreshed from Google Patents.
US3329650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical composition and process
Assignee: —
•
Filing: 1963-07-29
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Granted: 1967-07-04
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:00
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/07; C08K5/08; C08K3/00; C08K3/02; C08K3/06; C08K5/16; C08K5/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A COMPOSITION CONSISTING ESSENTIALLY OF A NORMALLY SOLID COPOLYMER OF AT LEAST ONE A-MONOOLEFIN HAVING THE STRUCTURE R-CH=CH2, WHERE R IS H OR C1 TO C16 ALKYL, AND AT LEAST ONE NON-CONJUGATED DIENE, FROM 20 TO 300 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF SAID COPOLYMER OF A REINFORCING MATERIAL SELECTED FROM THE GROUP CONSISTING OF MINERAL FILLER AND CARBON BLACK, A CURING SYSTEM SELECTED FROM SULFUR AND QUINOID CURING SYSTEMS AND AT LEAST 0.5 PART PER HUNDRED PARTS BY WEIGHT OF SAID COPOLYMER OF AN ORGANIC ISOCYANATE CONTAINING AT LEAST THREE ISOCYANATE GROUPS EACH ISOCYANATE GROUP BEING DIRECTLY ATTACHED TO AN AROMATIC NUCLEUS.
Claim 2
Dependent Claim
106 words
A COMPOSITION CONSISTING ESSENTIALLY OF A NORMALLY SOLID COPOLYMER OF AT LEAST ONE A-MONOOLEFIN HAVING THE STRUCTURE R-CH=CH2, WHERE R IS H OR C1 TO C16 ALKYL, AND AT LEAST ONE NON-CONJUGATED DIENE, FROM 20 TO 300 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF SAID COPOLYMER OF A REINFORCING MATERIAL SELECTED FROM THE GROUP CONSISTING OF MINERAL FILLER AND CARBON BLACK, A CURING SYSTEM SELECTED FROM SULFUR AND QUINOID CURING SYSTEMS AND AT LEAST 0.5 PART PER HUNDRED PARTS BY WEIGHT OF SAID COPOLYMER OF AN ORGANIC ISOCYANATE CONTAINING AT LEAST THREE ISOCYANATE GROUPS EACH ISOCYANATE GROUP BEING DIRECTLY ATTACHED TO AN AROMATIC NUCLEUS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |