Patent US3028322A successfully refreshed from Google Patents.
US3028322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Malmei
Assignee: —
•
Filing: —
•
Granted: 1962-04-03
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Expires: 1979-04-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:44
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/01; C25B3/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS FOR THE MANUFACTURE OF TETRAHYDROCARBON LEAD COMPOUND WHEREIN THE HYDROCARBON GROUPS CONTAIN AT LEAST TWO CARBON ATOMS, WHICH COMPRISES PASSING AN ELECTRIC CURRENT THROUGH AN ANHYDROUS ELECTROLYTE SYSTEM AND A LEAD ANODE, SAID ELECTROLYTE SYSTEM CONSISTING ESSENTIALLY OF ALKALI METAL TETRAHYDROCARBON ALUMINUM, WHEREIN FROM 5 TO 95 PERCENT OF THE HYDROCARBON GROUPS ARE METHYL GROUPS AND THE REMAINING HYDROCARBON GROUPS OTHER THAN METHYL GROUPS ATTACHED TO THE ALUMINUM ARE SELECTED FROM THE GROUP CONSISTING OF ARYL AND ALKYL GROUPS HAVING AT LEAST TWO CARBON ATOMS.
Claim 2
Dependent Claim
87 words
A PROCESS FOR THE MANUFACTURE OF TETRAHYDROCARBON LEAD COMPOUND WHEREIN THE HYDROCARBON GROUPS CONTAIN AT LEAST TWO CARBON ATOMS, WHICH COMPRISES PASSING AN ELECTRIC CURRENT THROUGH AN ANHYDROUS ELECTROLYTE SYSTEM AND A LEAD ANODE, SAID ELECTROLYTE SYSTEM CONSISTING ESSENTIALLY OF ALKALI METAL TETRAHYDROCARBON ALUMINUM, WHEREIN FROM 5 TO 95 PERCENT OF THE HYDROCARBON GROUPS ARE METHYL GROUPS AND THE REMAINING HYDROCARBON GROUPS OTHER THAN METHYL GROUPS ATTACHED TO THE ALUMINUM ARE SELECTED FROM THE GROUP CONSISTING OF ARYL AND ALKYL GROUPS HAVING AT LEAST TWO CARBON ATOMS.
References Cited (Backward Citations)
US2985568A
Cited
US2849349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |