Patent US2575134A successfully refreshed from Google Patents.
US2575134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive source
Assignee: General Electric Co
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Filing: 1950-12-06
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Granted: 1951-11-13
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Expires: 1970-12-06
Abstract
No abstract record available.
Inventors
- 👤 Warner W Schultz
- 👤 Eugene P Kozorlz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:55
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/04; G21G4/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A RADIOACTIVE SOURCE COMPRISING A SUPPORTING BLOCK FORMED OF A MATERIAL NOT READILY BROKEN DOWN BY PROLONGED BOMBARDMENT FROM RADIOACTIVE MATERIALS AND PROVIDED WITH A FLAT SURFACE; A DEPOSIT OF A RADIOACTIVE MATERIAL ON A PORTION OF SAID FLAT SURFACE; A THIN SHEET OF SEALING MATERIAL COVERING SAID SURFACE AND SAID DEPOSIT OF RADIOACTIVE MATERIAL THEREON TO FORM A SEALING LAYER TRANSPARENT TO THE SEPECTRUM OF RADIATION FROM SAID DEPOSIT OF RADIOACTIVE MATERIAL; A LAYER OF ADHESIVE BONDING SAID SHEET OF SEALING MATERIAL TO SAID SURFACE; A CASING FORMED OF MATERIAL CAPABLE OF STANDING PROLONGED BOMBARDMENT FROM RADIOACTIVE MATERIAL CONTAINING SAID SUPPORTING BLOCK, SAID SHEET OF SEALING MATERIAL AND SAID DEPOSIT OF RADIOACTIVE MATERIAL BONDED THEREBETWEEN AND HAVING AN APERTURE POSITIONED OVER SAID DEPOSIT OF RADIOACTIVE MATERIAL; AND A LAYER OF ADHESIVE BONDING SAID SUPPORTING BLOCK AND SAID SHEET SEALING MATERIAL TO SAID CASING.
Claim 2
Dependent Claim
144 words
A RADIOACTIVE SOURCE COMPRISING A SUPPORTING BLOCK FORMED OF A MATERIAL NOT READILY BROKEN DOWN BY PROLONGED BOMBARDMENT FROM RADIOACTIVE MATERIALS AND PROVIDED WITH A FLAT SURFACE; A DEPOSIT OF A RADIOACTIVE MATERIAL ON A PORTION OF SAID FLAT SURFACE; A THIN SHEET OF SEALING MATERIAL COVERING SAID SURFACE AND SAID DEPOSIT OF RADIOACTIVE MATERIAL THEREON TO FORM A SEALING LAYER TRANSPARENT TO THE SEPECTRUM OF RADIATION FROM SAID DEPOSIT OF RADIOACTIVE MATERIAL; A LAYER OF ADHESIVE BONDING SAID SHEET OF SEALING MATERIAL TO SAID SURFACE; A CASING FORMED OF MATERIAL CAPABLE OF STANDING PROLONGED BOMBARDMENT FROM RADIOACTIVE MATERIAL CONTAINING SAID SUPPORTING BLOCK, SAID SHEET OF SEALING MATERIAL AND SAID DEPOSIT OF RADIOACTIVE MATERIAL BONDED THEREBETWEEN AND HAVING AN APERTURE POSITIONED OVER SAID DEPOSIT OF RADIOACTIVE MATERIAL; AND A LAYER OF ADHESIVE BONDING SAID SUPPORTING BLOCK AND SAID SHEET SEALING MATERIAL TO SAID CASING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |