US2690381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isotope exchange process for concentrating deuterium
Assignee: Individual
•
Filing: 1945-05-15
•
Granted: 1954-09-28
•
Expires: 1965-05-15
Abstract
No abstract record available.
Inventors
- 👤 Hugh S Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:44
CPC Classifications
C; C01; C01B; C01B4/00; B; B01; B01D; B01D59/00; B01D59/28; B01D59/32; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A PROCESS FOR INCREASING THE CONCENTRATION OF DEUTERIUM COMPRISING THE STEPS OF FORMING A MIXTURE OF CYCLOHEXANE AND HYDROGEN CONTAINING DEUTERIUM, CAUSING AN EXCHANGE OF HYDROGEN ISOTOPES TO TAKE PLACE BETWEEN SAID CYCLOHEXANE AND SAID HYDROGEN TO FORM CYCLOHEXANE ENRICHED
Claim 2
Dependent Claim
40 words
A PROCESS FOR INCREASING THE CONCENTRATION OF DEUTERIUM COMPRISING THE STEPS OF FORMING A MIXTURE OF CYCLOHEXANE AND HYDROGEN CONTAINING DEUTERIUM, CAUSING AN EXCHANGE OF HYDROGEN ISOTOPES TO TAKE PLACE BETWEEN SAID CYCLOHEXANE AND SAID HYDROGEN TO FORM CYCLOHEXANE ENRICHED
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |