US3560458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerization of cationically polymerizable monomers
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1968-03-13
•
Granted: 1971-02-02
•
Expires: 1988-03-13
Abstract
Abstract A CATALYST SYSTEM FOR PREPARING HOMOPOLMERS AND COPOLYMERS OF CATIONICALLY POLYMERIZABLE MONOMERS WHEREIN THE CATALYST SYSTEM COMPRISES AN ORGANIC HALIDE COCATALYST AND A CATIONIC CATALYST OF THE TYPE AL(M)2R, WHERE M IS A BRANCHED OR STRAIGHT-CHAIN C1 TO C12 ALKYL AND R IS M, HYDROGEN OR HALOGEN.
Inventors
- 👤 Joseph P Kennedy
- 👤 Francis P Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:20
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F10/00; C08F10/04; C08F10/08; C08F10/10; C08F210/00; C08F210/04; C08F210/08; C08F210/10; C08F210/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |