Patent US3285889A successfully refreshed from Google Patents.
US3285889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of 1-monoolefins and dodecatertraenes
Assignee: Phillips Petroleum Co
•
Filing: 1963-09-16
•
Granted: 1966-11-15
•
Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Philip M Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:59
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/16; C08F210/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
IN A PROCESS FOR FORMING RUBBERY POLYMER COMPOSITIONS, SAID COMPOSITIONS BEING SELECTED FROM THE GROUP CONSISTING OF A COPOLYMER CONSISTING ESSENTIALLY OF 80 TO 99.5 WEIGHT PERCENT OF ETHYLENE AND 0.5 TO 20 WEIGHT PERCENT OF DODECATETRAENE, AND TERPOLYMERS CONSISTING ESSENTIALLY OF 20 TO 75 WEIGHT PERCENT ETHYLENE, 20 TO 75 WEIGHT PERCENT OF A 1-MONOOLEFIN HAVING THE FORMULA
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |