US3847871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers and copolymers of 1-ferrocenyl-1,3-butadiene
Assignee: Individual
•
Filing: 1972-05-11
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Granted: 1974-11-12
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Expires: 1992-05-11
Abstract
Abstract 1. AS A COMPOSITION OF MATTER, HOMOPOLYMERS OF 1FERROCENYL-1,3-BUTADIENE PREPARED BY REACTING OF 1-FERROCENYL-1,3-BUTADIENE WITH A CATALYST, IN THE PRESENCE OF A SOLVENT, AT A TEMPERATURE OF FROM ABOUT -79* TO 90* C., FOR A PERIOD OF FROM ABOUT 1 MINUTE TO 4 HOURS.
Inventors
- 👤 T Willis
- 👤 C Combs
- 👤 W Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:21
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AS A COMPOSITION OF MATTER, HOMOPOLYMERS OF 1FERROCENYL-1,3-BUTADIENE PREPARED BY REACTING OF 1-FERROCENYL-1,3-BUTADIENE WITH A CATALYST, IN THE PRESENCE OF A SOLVENT, AT A TEMPERATURE OF FROM ABOUT -79* TO 90* C., FOR A PERIOD OF FROM ABOUT 1 MINUTE TO 4 HOURS.
Claim 2
Dependent Claim
43 words
AS A COMPOSITION OF MATTER, HOMOPOLYMERS OF 1FERROCENYL-1,3-BUTADIENE PREPARED BY REACTING OF 1-FERROCENYL-1,3-BUTADIENE WITH A CATALYST, IN THE PRESENCE OF A SOLVENT, AT A TEMPERATURE OF FROM ABOUT -79* TO 90* C., FOR A PERIOD OF FROM ABOUT 1 MINUTE TO 4 HOURS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |