US2911533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron irradiation of solids
Assignee: Individual
•
Filing: 1957-12-24
•
Granted: 1959-11-03
•
Expires: 1977-12-24
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Damask
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:38
CPC Classifications
G; G21; G21H; G21H5/00; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A METHOD FOR CHANGING THE VALUE OF THE RESISTIVITY OF AN ALLOY WHICH EXHIBITS AN ORDERED ARRANGEMENT OF ATOMS, SAID ALLOY BEING ONE IN WHICH ATOMIC DIFFUSION OCCURS BY A VACANCY MECHANISM, AND IN WHICH THE RESISTIVITY VARIES WITH THE DEGREE OF ORDER, AND FOR WHICH THERE IS A THEORETICALLY PRODUCIBLE EQUILIBRIUM, RESISTIVITY AT ANY PARTICULAR TEMPERATURE, AND FOR WHICH THERE IS A VACANCY FREEZING-IN-TEMPERATURE BELOW WHICH HEAT ALONE IMPARTED TO SAID ALLOY WILL NOT PRODUCE SAID EQUILIBRIUM RESISTIVITY, THE METHOD COMPRISING THE STEPS OF HOLDING THE TEMPERATURE OF A ZONE OF A PIECE OF SAID ALLOY BELOW SAID FREEZING-IN TEMPERATURE WHILE IRRADIATING SAID ZONE WITH ELECTRONS HAVING AN ENERGY OF AT LEAST 0.5 MEV. UNTIL THE RESISTIVITY OF SAID ZONE APPROACHES A PREDETERMINED PERCENTAGE OF THE EQUILIBRIUM RESISTIVITY AT SAID HOLDING TEMPERATURE.
Claim 2
Independent Claim
133 words
A METHOD FOR CHANGING THE VALUE OF THE RESISTIVITY OF AN ALLOY WHICH EXHIBITS AN ORDERED ARRANGEMENT OF ATOMS, SAID ALLOY BEING ONE IN WHICH ATOMIC DIFFUSION OCCURS BY A VACANCY MECHANISM, AND IN WHICH THE RESISTIVITY VARIES WITH THE DEGREE OF ORDER, AND FOR WHICH THERE IS A THEORETICALLY PRODUCIBLE EQUILIBRIUM, RESISTIVITY AT ANY PARTICULAR TEMPERATURE, AND FOR WHICH THERE IS A VACANCY FREEZING-IN-TEMPERATURE BELOW WHICH HEAT ALONE IMPARTED TO SAID ALLOY WILL NOT PRODUCE SAID EQUILIBRIUM RESISTIVITY, THE METHOD COMPRISING THE STEPS OF HOLDING THE TEMPERATURE OF A ZONE OF A PIECE OF SAID ALLOY BELOW SAID FREEZING-IN TEMPERATURE WHILE IRRADIATING SAID ZONE WITH ELECTRONS HAVING AN ENERGY OF AT LEAST 0.5 MEV. UNTIL THE RESISTIVITY OF SAID ZONE APPROACHES A PREDETERMINED PERCENTAGE OF THE EQUILIBRIUM RESISTIVITY AT SAID HOLDING TEMPERATURE.
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US2809905A
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FR1141535A
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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) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |