US3415643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature ferromagnetic cobalt-base alloy
Assignee: National Aeronautics and Space Administration
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Filing: 1966-05-31
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Granted: 1968-12-10
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 John C Freche
- 👤 Richard L Ashbrook
- 👤 Gary D Sandrock
- 👤 Dreshfield Robert Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:09
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A COBALT BASE ALLOY HAVING A HIGH CURIE TEMPERATURE, HIGH STRENGTH AND HIGH MAGNETIC INDUCTION FOR LOW APPLIED FIELDS AT ELEVATED TEMPERATURES CONSISTING ESSENTIALLY OF FROM 5% TO 14% TUNGSTEN, FROM .3% TO 1.8% TITANIUM, FROM 0.1% TO 1% ZIRCONIUM, FROM 0.3% TO 0.7% CARBON, UP TO 10% IRON, AND THE REST ESSENTIALLY COBALT.
Claim 2
Dependent Claim
54 words
A COBALT BASE ALLOY HAVING A HIGH CURIE TEMPERATURE, HIGH STRENGTH AND HIGH MAGNETIC INDUCTION FOR LOW APPLIED FIELDS AT ELEVATED TEMPERATURES CONSISTING ESSENTIALLY OF FROM 5% TO 14% TUNGSTEN, FROM .3% TO 1.8% TITANIUM, FROM 0.1% TO 1% ZIRCONIUM, FROM 0.3% TO 0.7% CARBON, UP TO 10% IRON, AND THE REST ESSENTIALLY COBALT.
References Cited (Backward Citations)
US3271140A
Cited
US3276865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |