US3004073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process to prepare 1-pentachlorophenoxy-2,3-propanediol
Assignee: PPG Industries Inc
•
Filing: 1959-05-05
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Granted: 1961-10-10
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Expires: 1979-05-05
Abstract
No abstract record available.
Inventors
- 👤 Wismer Marco
- 👤 William R Hydro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:16
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A METHOD OF FORMING A 1-PENTAHALOPHENOXY-2,3-PROPANEDIOL WHICH COMPRISES HEATING A MIXTURE OF A PENTAHALOPHENYL GLYCIDYL ETHER, IN WHICH THE HALOGEN IS OF AN ATOMIC WEIGHT BETWEEN ABOUT 35 AND ABOUT 80, AND WATER IN THE PRESENCE OF A MUTUAL SOLVENT AND A STRONG, MINERAL ACID BOILING ABOVE ABOUT 150*C.
Claim 2
Independent Claim
49 words
A METHOD OF FORMING A 1-PENTAHALOPHENOXY-2,3-PROPANEDIOL WHICH COMPRISES HEATING A MIXTURE OF A PENTAHALOPHENYL GLYCIDYL ETHER, IN WHICH THE HALOGEN IS OF AN ATOMIC WEIGHT BETWEEN ABOUT 35 AND ABOUT 80, AND WATER IN THE PRESENCE OF A MUTUAL SOLVENT AND A STRONG, MINERAL ACID BOILING ABOVE ABOUT 150*C.
References Cited (Backward Citations)
US2221771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |