US2581147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-temperature iso-olefin polymerization with aluminum chloride containing aluminummetal
Assignee: Standard Oil Development Co
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Filing: 1950-03-23
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Granted: 1952-01-01
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Expires: 1970-03-23
Abstract
No abstract record available.
Inventors
- 👤 Henry G Schutze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:57
CPC Classifications
C; C08; C08F; C08F210/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A CATALYTIC SOLUTION SUITABLE FOR POLYMERIZING A MIXTURE OF MONO-OLEFINS AND DIOLEFINS AT A LOW TEMPERATURE WHICH COMPRISES A SOLUTION FORMED BY DISSOLVING ALUMINUM CHLORIDE CONTAINING AN AMOUNT NOT GREATER THAN 2% BY WEIGHT OF METALLIC ALUMINUM IN METHYL CHLORIDE CONTAINING WATER.
Claim 2
Dependent Claim
42 words
A CATALYTIC SOLUTION SUITABLE FOR POLYMERIZING A MIXTURE OF MONO-OLEFINS AND DIOLEFINS AT A LOW TEMPERATURE WHICH COMPRISES A SOLUTION FORMED BY DISSOLVING ALUMINUM CHLORIDE CONTAINING AN AMOUNT NOT GREATER THAN 2% BY WEIGHT OF METALLIC ALUMINUM IN METHYL CHLORIDE CONTAINING WATER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |