US3361779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organometallic compounds
Assignee: Ethyl Corp
•
Filing: 1959-08-20
•
Granted: 1968-01-02
•
Expires: 1979-08-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Coffield
- 👤 Rex D Closson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:46
CPC Classifications
C; C07; C07F; C07F17/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A NONIONIC COMPLEX AROMATIC METAL COMPOUND OF A METAL SELECTED FROM THE CLASS CONSISTING OF GROUPS IV-B, V-B AND VI-B METALS HAVING A SINGLE AROMATIC MOLECULE BONDED TO THE METAL THROUGH THE CARBON ATOMS OF THE BENZENE RING BY DONATION OF 6 ELECTRONS FROM SAID RING TO SAID METAL, WHICH COMPOUND IS STABILIZED BY ADDITIONAL COVALENT BONDING TO DISSIMILAR NON-AROMATIC ELECTRON DONATING GROUPS, SUCH THAT THE TOTAL NUMBER OF ELECTRONS DONATED BY SAID AROMATIC MOLECULE AND SAID DISSIMILAR ELECTRON DONATING GROUPS PLUS THE ATOMIC NUMBER OF SAID METAL EQUALS AN INTEGER HAVING A VALUE OF FROM 2 LESS THAN THE ATOMIC NUMBER OF THE NEXT HIGHER RARE GAS TO THE VALUE OF THE NEXT HIGHER RARE GAS.
Claim 2
Dependent Claim
117 words
A NONIONIC COMPLEX AROMATIC METAL COMPOUND OF A METAL SELECTED FROM THE CLASS CONSISTING OF GROUPS IV-B, V-B AND VI-B METALS HAVING A SINGLE AROMATIC MOLECULE BONDED TO THE METAL THROUGH THE CARBON ATOMS OF THE BENZENE RING BY DONATION OF 6 ELECTRONS FROM SAID RING TO SAID METAL, WHICH COMPOUND IS STABILIZED BY ADDITIONAL COVALENT BONDING TO DISSIMILAR NON-AROMATIC ELECTRON DONATING GROUPS, SUCH THAT THE TOTAL NUMBER OF ELECTRONS DONATED BY SAID AROMATIC MOLECULE AND SAID DISSIMILAR ELECTRON DONATING GROUPS PLUS THE ATOMIC NUMBER OF SAID METAL EQUALS AN INTEGER HAVING A VALUE OF FROM 2 LESS THAN THE ATOMIC NUMBER OF THE NEXT HIGHER RARE GAS TO THE VALUE OF THE NEXT HIGHER RARE GAS.
Claim 3
Dependent Claim
11 words
AS COMPOSITIONS OF MATTER OF STABLE ORGANOMETALLIC CARBONYLS HAVING THE FORMULA:
Claim 4
Dependent Claim
11 words
AS COMPOSITIONS OF MATTER OF STABLE ORGANOMETALLIC CARBONYLS HAVING THE FORMULA:
References Cited (Backward Citations)
US2409167A
Cited
US2818416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |