US3023119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated mold for casting plutonium
Assignee: Individual
•
Filing: 1959-03-05
•
Granted: 1962-02-27
•
Expires: 1979-03-05
Abstract
No abstract record available.
Inventors
- 👤 John W Anderson
- 👤 William C Pritchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:33
CPC Classifications
B; B22; B22C; B22C3/00; B22C23/00; B22C23/02; B22D; B22D7/00; B22D7/005; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/258; Y10T428/26; Y10T428/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A MOLD FOR THE PRECISION CASTING OF PLUTONIUM AND PLUTONIUM ALLOYS IN THIN SECTIONS, COMPRISING A BASE PORTION AND A UNIFORM, IMPERMEABLE COATING THEREON, SAID BASE PORTION BEING OF A MATERIAL WHICH REMAINS SOLID AND STABLE AT TEMPERATURES AS HIGH AS THE POURING TEMPERATURE OF THE METAL BEING CAST, SAID COATING COMPRISING FINELY DIVIDED CALCIUM FLUORIDE IN WHICH THE MAXIMUM PARTICLE SIZE IS ABOUT 149 MICRONS AND SAID COATING HAVING A THICKNESS NOT EXCEEDING ABOUT 0.005 INCH.
Claim 2
Dependent Claim
77 words
A MOLD FOR THE PRECISION CASTING OF PLUTONIUM AND PLUTONIUM ALLOYS IN THIN SECTIONS, COMPRISING A BASE PORTION AND A UNIFORM, IMPERMEABLE COATING THEREON, SAID BASE PORTION BEING OF A MATERIAL WHICH REMAINS SOLID AND STABLE AT TEMPERATURES AS HIGH AS THE POURING TEMPERATURE OF THE METAL BEING CAST, SAID COATING COMPRISING FINELY DIVIDED CALCIUM FLUORIDE IN WHICH THE MAXIMUM PARTICLE SIZE IS ABOUT 149 MICRONS AND SAID COATING HAVING A THICKNESS NOT EXCEEDING ABOUT 0.005 INCH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |