US2847331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen isotope targets
Assignee: Individual
•
Filing: 1954-12-24
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Granted: 1958-08-12
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Expires: 1974-12-24
Abstract
No abstract record available.
Inventors
- 👤 Robert W Ashley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:49
CPC Classifications
G; G21; G21G; G21G1/00; G21G1/04; G21G1/10; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12236; Y10T428/12243; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12812
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
A METHOD OF PREPARING HYDROGEN ISOTOPE TARGETS WHICH COMPRISES THOROUGHLY CLEANING A BACKING DISC OF A METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND TUNGSTEN, PLACING THE DISC IN A CLOSED VESSEL UNDER VACUUM IN THE PRESENCE OF TITANIUM METAL, HEATING TO EVAPORATE THE TITANIUM TO COAT THE DISC, COOLING THE COATED DISC WITHIN THE VACUUM VESSEL, AND HEATING THE COATED DISC UNDER VACUUM IN THE PRESENCE OF A HYDROGEN ISOTOPE SELECTED FROM THE GROUP CONSISTING OF DEUTERIUM AND TRITIUM TO CAUSE ABSORPTION OF TH ISOTOPE BY THE HEATED COATING, AND MAINTAINING THE TEMPERATURE AT NOT SUBSTANTIALLY HIGHER THAN 500*C. TO PREVENT DESORPTION OF THE ISOTOPE.
References Cited (Backward Citations)
US2351798A
Cited
US2711973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |