US2985675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of organolead compounds
Assignee: Ethyl Corp
•
Filing: 1957-01-07
•
Granted: 1961-05-23
•
Expires: 1977-01-07
Abstract
No abstract record available.
Inventors
- 👤 Sidney M Blitzer
- 👤 Tillmon H Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:11
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS OF PRODUCING A HYDROCARBON LEAD COMPOUND WHICH COMPRISE<S REACTING A LEAD FLUORIDE WITH A HYDROCARBON METALLIC COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF GROUP IA, IIA, AND IIIA METALS WHEREIN THE HYDROCARBON PORTION OF SAID COMPOUND IS COMPOSED OF RADICALS HAVING UP TO 10 CARBON ATOMS INCLUSIVE AND SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICAL.
Claim 2
Dependent Claim
63 words
A PROCESS OF PRODUCING A HYDROCARBON LEAD COMPOUND WHICH COMPRISE<S REACTING A LEAD FLUORIDE WITH A HYDROCARBON METALLIC COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF GROUP IA, IIA, AND IIIA METALS WHEREIN THE HYDROCARBON PORTION OF SAID COMPOUND IS COMPOSED OF RADICALS HAVING UP TO 10 CARBON ATOMS INCLUSIVE AND SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICAL.
References Cited (Backward Citations)
US2826598A
Cited
US2786860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |