US2922802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium and zirconium organic compounds
Assignee: NL Industries Inc
•
Filing: 1958-08-26
•
Granted: 1960-01-26
•
Expires: 1978-08-26
Abstract
No abstract record available.
Inventors
- 👤 Kaufman Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:34
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A COMPOUND COMPRISING A DERIVATIVE OF BIS-CYCLOPENTADIENYL METAL DIHALIDE, SAID METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM, SAID DIHALIDE SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE, BROMINE AND IODINE, SAID DERIVATIVE HAVING ONE CYCLOPENTADIENYL GROUP, ONE ALIPHATIC GROUP AND TWO HALOGENS DIRECTLY ATTACHED TO EACH METAL ATOM, SAID ALIPHATIC GROUP SELECTED FROM THE GROUP CONSISTING OF DIHALOCYCLOPENTENYL AND TETRAHALOCYCLOPENTANYL.
Claim 2
Dependent Claim
63 words
A COMPOUND COMPRISING A DERIVATIVE OF BIS-CYCLOPENTADIENYL METAL DIHALIDE, SAID METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM, SAID DIHALIDE SELECTED FROM THE GROUP CONSISTING OF FLUORINE, CHLORINE, BROMINE AND IODINE, SAID DERIVATIVE HAVING ONE CYCLOPENTADIENYL GROUP, ONE ALIPHATIC GROUP AND TWO HALOGENS DIRECTLY ATTACHED TO EACH METAL ATOM, SAID ALIPHATIC GROUP SELECTED FROM THE GROUP CONSISTING OF DIHALOCYCLOPENTENYL AND TETRAHALOCYCLOPENTANYL.
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) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |