US2803675A
Expired / Lapsed
US
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Method for making beta-chlorostyrene compounds
Assignee: Dow Chemical Co
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Filing: 1955-09-09
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Granted: 1957-08-20
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Expires: 1975-09-09
Abstract
No abstract record available.
Inventors
- 👤 Robert R Dreisbach
- 👤 John F Mulloy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:43
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07C17/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
A METHOD FOR MAKING B-CHLOROSTYRENE COMPOUNDS, WHICH METHOD COMPRISES INTIMATELY ADMIXING (A) A STYRENE COMPOUND IN A LIQUID FORM AND (B) AN ACIDIC AQUEOUS SOLUTION THAT COMPRISES A STRONG MINERAL ACID, AN IN-ORGANIC CHLORIDE, AND AN INORGANIC SALT SELECTED FROM THE CLASS CONSISTING OF INORGANIC CHLORATES AND INORGANIC HYPOCHLORITES, AT A TEMPERATURE BETWEEN 0*C. AND THEE BOILING POINT OF THE RESULTING MIXTURE.
References Cited (Backward Citations)
FR1082815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |