Patent US3304175A successfully refreshed from Google Patents.
US3304175A
Expired / Lapsed
US
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Nitrogen-containing alloy and its preparation
Assignee: Shieldalloy Corp
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Filing: 1964-07-14
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Granted: 1967-02-14
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Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Stanley W Madsen
- 👤 Edward L Payer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:39
CPC Classifications
C; C22; C22C; C22C27/00; C22C27/02; C22C27/025; C22C32/00; C22C32/0047; C22C32/0068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A NITROGEN-CONTAINING ALLOY CONSISTING ESSENTIALLY OF FROM ABOUT 50 TO ABOUT 75% OF VANADIUM, FROM ABOUT 5 TO ABOUT 30% OF MANGANESE AND FROM ABOUT 6 TO ABOUT 17% OF NITROGEN.
Claim 2
Dependent Claim
31 words
A NITROGEN-CONTAINING ALLOY CONSISTING ESSENTIALLY OF FROM ABOUT 50 TO ABOUT 75% OF VANADIUM, FROM ABOUT 5 TO ABOUT 30% OF MANGANESE AND FROM ABOUT 6 TO ABOUT 17% OF NITROGEN.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |