US2930725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel-iron alloys
Assignee: Huntington Alloys Corp
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Filing: 1958-03-12
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Granted: 1960-03-29
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Expires: 1978-03-12
Abstract
No abstract record available.
Inventors
- 👤 Clark Charles Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:17
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A TEMPERATURE RESPONSIVE ELEMENT FOR USE IN MAGETIC INDICATING INSTRUMENTS SUBJECTED IN SERVICE TO CHANGES IN TEMPERATURE OVER A WIDE RANGE OF TEMPERATURE COMPRISED TO A TEMPERATURE COMPENSING ALLOY CHARACTERIZED BY THE PROPERTY OF HAVING A SPECIFIED CURIE TEMPRETURE AND MARTENSITIC TRANSFORMATION TEMPERATURE, SAID COMPENSATING ALLOY BEING SUBSTANTIALLY FREE OF CARBON AND SILICON AND CONTAINING 28.4% TO 32.5% NICKEL, AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND MOLYBDENUM IN AMOUNTS OF UP TO 6% COPPER AND UP TO 10% MOLYBDENUM, UP TO 6% MANGANESE AND THE BALANCE BEING SUBSTANTIALLY IRON, THE NICKEL AND METAL FROM THE GROUP CONSISTING OF COPPER AND MOLYBDENUM AND THE MANGANESE BEING PRESENT IN SUCH AMOUNTS AS TO SATISFY THE RELATIONSHIP EXPRESSED BY THE FORMULA
Claim 2
Dependent Claim
123 words
A TEMPERATURE RESPONSIVE ELEMENT FOR USE IN MAGETIC INDICATING INSTRUMENTS SUBJECTED IN SERVICE TO CHANGES IN TEMPERATURE OVER A WIDE RANGE OF TEMPERATURE COMPRISED TO A TEMPERATURE COMPENSING ALLOY CHARACTERIZED BY THE PROPERTY OF HAVING A SPECIFIED CURIE TEMPRETURE AND MARTENSITIC TRANSFORMATION TEMPERATURE, SAID COMPENSATING ALLOY BEING SUBSTANTIALLY FREE OF CARBON AND SILICON AND CONTAINING 28.4% TO 32.5% NICKEL, AT LEAST ONE METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND MOLYBDENUM IN AMOUNTS OF UP TO 6% COPPER AND UP TO 10% MOLYBDENUM, UP TO 6% MANGANESE AND THE BALANCE BEING SUBSTANTIALLY IRON, THE NICKEL AND METAL FROM THE GROUP CONSISTING OF COPPER AND MOLYBDENUM AND THE MANGANESE BEING PRESENT IN SUCH AMOUNTS AS TO SATISFY THE RELATIONSHIP EXPRESSED BY THE FORMULA
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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |