US3131155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst system for linear and cyclic polymerization of mono substituted acetylenes
Assignee: Wyeth Holdings LLC
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Filing: 1959-10-06
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Granted: 1964-04-28
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Expires: 1979-10-06
Abstract
No abstract record available.
Inventors
- 👤 Llonel B Luttinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:46
CPC Classifications
C; C08; C08F; C08F38/00; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1805; B01J31/1895; B01J31/24; B01J31/2404; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/38; C07C2/42; C07C2/48; C08F4/00; C08F4/06; C08F4/26; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/824; B01J2531/825; B01J2531/827; B01J2531/828; B01J2531/84; B01J2531/845; B01J2531/847; C07C2531/00; C07C2531/16; C07C2531/22; C07C2531/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A NEW CATALYST COMPOSITON COMPRISING A MIXTURE OF (1) AN ORGANIC TRANSITION METAL COMPLEX REPRESENTED BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
19 words
A NEW CATALYST COMPOSITON COMPRISING A MIXTURE OF (1) AN ORGANIC TRANSITION METAL COMPLEX REPRESENTED BY THE GENERAL FORMULA:
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |