Patent US2642358A successfully refreshed from Google Patents.
US2642358A
Expired / Lapsed
US
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Cerium base alloy
Assignee: Individual
•
Filing: 1949-09-20
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Granted: 1953-06-16
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Expires: 1969-09-20
Abstract
No abstract record available.
Inventors
- 👤 Kent Paula
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:04
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/02; C22C1/03; C22C28/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A MASTER ALLOY USEFUL IN THE PREPARATION OF MAGNESIUM-BASE ALLOYS, CONSISTING ESSENTIALLY OF FROM 77% TO 89% CERIUM, FROM 8% TO 20% MANGANESE, FROM 2% T0 5% NICKEL AND FROM .2% TO .5% TUNGSTEN.
Claim 2
Dependent Claim
34 words
A MASTER ALLOY USEFUL IN THE PREPARATION OF MAGNESIUM-BASE ALLOYS, CONSISTING ESSENTIALLY OF FROM 77% TO 89% CERIUM, FROM 8% TO 20% MANGANESE, FROM 2% T0 5% NICKEL AND FROM .2% TO .5% TUNGSTEN.
References Cited (Backward Citations)
FR479757A
Cited
US1290010A
Cited
US2121292A
Cited
US2288513A
Cited
US2188239A
Cited
US2302968A
Cited
US2389198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |