Patent US3752236A successfully refreshed from Google Patents.
Patent US1230686A successfully refreshed from Google Patents.
Patent US3133793A successfully refreshed from Google Patents.
US3133793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing deuteriumenriched hydrogen
Assignee: LISSEMENT PUBLIC DIT HOUILLERE
•
Filing: 1962-07-11
•
Granted: 1964-05-19
•
Expires: 1982-07-11
Abstract
No abstract record available.
Inventors
- 👤 Lefrancois Bernard
- 👤 Sack Henri
- 👤 Vaniscotte Christian
- 👤 Dirian Gregoire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:24
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/2645; C08G65/2648; B; B01; B01J; B01J21/00; B01J21/02; B01J27/00; B01J27/24; C01; C01B; C01B4/00; C08F; C08F36/00; C08F36/02; C08F36/04; C08F4/00; C08F4/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD OF PREPARING DEUTERIUM-ENRICHED HYDROGEN, COMPRISING REACTING HYDROGEN AND LIQUID AMMONIA IN WHICH AT LEAST A PART OF THE HYDROGEN IS DEUTERIUM AT A TEMPERATURE IN THE RANGE BETWEEN APPROXIMATELY -70* C. AND +70*C. AND IN THE PRESENCE OF A CATALYST COMPOSITION DISSOLVED IN THE LIQUID AMMONIA AND COMPRISING AN AMIDE OF AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF CASEIUM AND RUBIDIUM, SAID AMIDE BEING PRESENT IN THE CATALYST COMPOSITION IN AN AMOUNT BETWEEN 0.05% AND 10%, BY WEIGHT, OF SAID LIQUID AMMONIA.
Claim 2
Independent Claim
87 words
A METHOD OF PREPARING DEUTERIUM-ENRICHED HYDROGEN, COMPRISING REACTING HYDROGEN AND LIQUID AMMONIA IN WHICH AT LEAST A PART OF THE HYDROGEN IS DEUTERIUM AT A TEMPERATURE IN THE RANGE BETWEEN APPROXIMATELY -70* C. AND +70*C. AND IN THE PRESENCE OF A CATALYST COMPOSITION DISSOLVED IN THE LIQUID AMMONIA AND COMPRISING AN AMIDE OF AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF CASEIUM AND RUBIDIUM, SAID AMIDE BEING PRESENT IN THE CATALYST COMPOSITION IN AN AMOUNT BETWEEN 0.05% AND 10%, BY WEIGHT, OF SAID LIQUID AMMONIA.
References Cited (Backward Citations)
US2787526A
Cited
US2780526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |