US2990277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High initial permeability magnetic alloy
Assignee: Carpenter Steel Co
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Filing: 1958-10-29
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Granted: 1961-06-27
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Expires: 1978-10-29
Abstract
No abstract record available.
Inventors
- 👤 Carl B Post
- 👤 Warren S Eberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/14708
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A MAGNETIC ALLOY, CONSISTING ESSENTIALLY OF ABOUT 75% TO ABOUT 85% NICKEL, ABOUT 3% TO ABOUT 5% MOLYBDENUM, ABOUT 0.04% TO ABOUT 0.95% VANADIUM, AND THE BALANCE ESSENTIALLY IRON.
Claim 2
Dependent Claim
29 words
A MAGNETIC ALLOY, CONSISTING ESSENTIALLY OF ABOUT 75% TO ABOUT 85% NICKEL, ABOUT 3% TO ABOUT 5% MOLYBDENUM, ABOUT 0.04% TO ABOUT 0.95% VANADIUM, AND THE BALANCE ESSENTIALLY IRON.
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |