Patent US2981602A successfully refreshed from Google Patents.
US2981602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of deuterium fluoride
Assignee: Dow Chemical Co
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Filing: 1959-03-23
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Granted: 1961-04-25
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 George A Olah
- 👤 Stephen J Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:11
CPC Classifications
C; C01; C01B; C01B4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN IMPROVED METHOD FOR THE PREPARATION OF DEUTERIUM FLUORIDE COMPRISING REACTING SUBSTANTIALLY PURE DEUTERIUM OXIDE WITH AT LEAST A STOICHIOMETRICAL AMOUNT OF FLUORINE-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF THIONYL FLUORIDE, CARBONYL FLUORIDE, FLUOSULFONIC ACID, LOWER ALKYL SULFONYL FLUORIDES, LOWER ALKYL ACYL FLUORIDES AND LOWER ARYL AND ALKARYL ACYL FLUORIDES, AT A TEMPERATURE OF AT LEAST 50*C. AND FOR A TIME SUFFICIENT FOR THE DEUTEROLYSIS REACTION TO APPROACH COMPLETION.
Claim 2
Dependent Claim
70 words
AN IMPROVED METHOD FOR THE PREPARATION OF DEUTERIUM FLUORIDE COMPRISING REACTING SUBSTANTIALLY PURE DEUTERIUM OXIDE WITH AT LEAST A STOICHIOMETRICAL AMOUNT OF FLUORINE-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF THIONYL FLUORIDE, CARBONYL FLUORIDE, FLUOSULFONIC ACID, LOWER ALKYL SULFONYL FLUORIDES, LOWER ALKYL ACYL FLUORIDES AND LOWER ARYL AND ALKARYL ACYL FLUORIDES, AT A TEMPERATURE OF AT LEAST 50*C. AND FOR A TIME SUFFICIENT FOR THE DEUTEROLYSIS REACTION TO APPROACH COMPLETION.
References Cited (Backward Citations)
US2681883A
Cited
US2702233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |