US3089886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclopentadienyl and di-ethyl malonyl titanium compounds
Assignee: Shell USA Inc
•
Filing: 1953-05-04
•
Granted: 1963-05-14
•
Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Breederveld Heyme
- 👤 Waterman Hein Israel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:02
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; B01J31/2282; B01J31/2295; C; C07; C07F; C07F7/00; C07F7/28; B01J2531/00; B01J2531/40; B01J2531/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
COMPOUNDS OF THE GENERAL FORMULA TI(A)NX(4-N) WHEREIN A IS AN ORGANIC RADICAL OF STRONG NEGATIVE CHARACTER SELECTED FROM THE GROUP CONSISTING OF THE CYCLOPENTADIENYL RADICAL AND THE RADICAL OBTAINED BY REMOVING HYDROGEN FROM THE ALPHA CARBON ATOM OF THE MALONYL GROUP OF AN ALKYL ESTER OF MALONIC ACID, SAID RADICAL BEING LINKED TO THE TITANIUM ATOM BY A TITANIUM TO CARBON BOND, X IS HALOGEN AND N IS AN INTEGER HAVING A VALUE OF FROM 1 TO 4 INCLUSIVE.
Claim 2
Dependent Claim
79 words
COMPOUNDS OF THE GENERAL FORMULA TI(A)NX(4-N) WHEREIN A IS AN ORGANIC RADICAL OF STRONG NEGATIVE CHARACTER SELECTED FROM THE GROUP CONSISTING OF THE CYCLOPENTADIENYL RADICAL AND THE RADICAL OBTAINED BY REMOVING HYDROGEN FROM THE ALPHA CARBON ATOM OF THE MALONYL GROUP OF AN ALKYL ESTER OF MALONIC ACID, SAID RADICAL BEING LINKED TO THE TITANIUM ATOM BY A TITANIUM TO CARBON BOND, X IS HALOGEN AND N IS AN INTEGER HAVING A VALUE OF FROM 1 TO 4 INCLUSIVE.
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |