US3265765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Block polymers of monovinyl aromatic hydrocarbons and conjugated dienes
Assignee: Shell USA Inc
•
Filing: 1962-01-29
•
Granted: 1966-08-09
•
Expires: 1982-01-29
Abstract
No abstract record available.
Inventors
- 👤 Holden Geoffrey
- 👤 Milkovich Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:37
CPC Classifications
C; C08; C08F; C08F297/00; C08F297/02; C08F297/04; C08F297/046
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
15 words
AS A NOVEL COMPOSITION OF MATTER, AN UNVULCANIZED ELASTOMERIC BLOCK COPOLYMER HAVING THE GENERAL CONFIGURATION
Claim 2
Dependent Claim
15 words
AS A NOVEL COMPOSITION OF MATTER, AN UNVULCANIZED ELASTOMERIC BLOCK COPOLYMER HAVING THE GENERAL CONFIGURATION
Claim 3
Dependent Claim
36 words
A NEW COMPOSITION OF MATTER COMPRISING AN ELASTOMER OF THE GROUP CONSISTING OF CONJUGATED DIENE HOMOPOLYMERS AND RANDOL COPOLYMERS OF CONJUGATED DIENES WITH VINYLAROMATIC HYDROCARBONS AND 5-50% BY WEIGHT OF BLOCK COPOLYMER ACCORDING TO CLAIM 1.
References Cited (Backward Citations)
US2666042A
Cited
GB838996A
Cited
GB856581A
Cited
US3149182A
Cited
FR1270016A
Cited
US3041310A
Cited
US3078254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |