US4249940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mischmetal-nickel-iron hydrogen storage compound
Assignee: ERGENICS Inc A NJ CORP
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Filing: 1979-01-08
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Granted: 1981-02-10
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Expires: 1999-01-08
Abstract
Abstract Discloses a hydridable compound of the general formula MNi x-y Fe y , where M is mischmetal, x is a number between 4.5 and 5.5 and y is a number between about 0.1 and 1.3.
Inventors
- 👤 Gary D. Sandrock
- 👤 Stephan L. Keresztes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:31
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C01; C01B; C01B3/00; C01B3/0005; C01B3/001; C01B3/0018; C01B3/0031; C01B3/0047; C01B3/0057; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y10; Y10S; Y10S420/00; Y10S420/90
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
42 words
A compound capable of combining with hydrogen to form a hydride consisting essentially of MNi x-y Fe y , wherein M is mischmetal, x is a number between about 4.5 and 5.5 and y is a number between about 0.1 and 1.3.
Claim 2
Dependent Claim
42 words
A compound capable of combining with hydrogen to form a hydride consisting essentially of MNi x-y Fe y , wherein M is mischmetal, x is a number between about 4.5 and 5.5 and y is a number between about 0.1 and 1.3.
Claim 3
Dependent Claim
11 words
A compound as in claim 1, wherein x is about 5.
Claim 4
Dependent Claim
13 words
A compound as in claim 1, wherein y is about 0.5 to 1.0.
Claim 5
Dependent Claim
14 words
A compound as in claim 2, wherein y is about 0.5 to about 1.0.
References Cited (Backward Citations)
US3825418A
Cited
US4152145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |