US3349065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butyl rubber catalyst system utilizing air2x with an hx promoter
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1964-05-01
•
Granted: 1967-10-24
•
Expires: 1984-05-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:04
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/04; C08F210/08; C08F210/10; C08F210/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR COPOLYMERIZING A MAJOR AMOUNT OF A C4 TO C7 ISOOLEFIN WITH A MINOR AMOUNT OF C4 TO C14 MULTILOEFINS WHICH COMPRISES, CONTACTING A MIXTURE OF THE MATERIALS TO BE POLYMERIZED WITH A CATALYST SYSTEM COMPRISING AN ANHYDROUS HYDROGEN HALIDE AND A DIALKYL ALUMINUM MONOHALIDE HAVING THE FORMULA,
Claim 2
Dependent Claim
50 words
A PROCESS FOR COPOLYMERIZING A MAJOR AMOUNT OF A C4 TO C7 ISOOLEFIN WITH A MINOR AMOUNT OF C4 TO C14 MULTILOEFINS WHICH COMPRISES, CONTACTING A MIXTURE OF THE MATERIALS TO BE POLYMERIZED WITH A CATALYST SYSTEM COMPRISING AN ANHYDROUS HYDROGEN HALIDE AND A DIALKYL ALUMINUM MONOHALIDE HAVING THE FORMULA,
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |