US2978322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrophoric alloys without iron
Assignee: —
•
Filing: —
•
Granted: 1961-04-04
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Expires: 1978-04-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:50
CPC Classifications
C; C22; C22C; C22C28/00; C06; C06C; C06C15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PYROPHORIC MASS SUITABLE FOR EXTRUSION TO PRODUCE FINISHED FLINTS IN ROD FORMATION; CONSISTING ESSENTIALLY OF CERIUM (MISCH METAL) WITH ZINC RANGING FROM 5% TO 25% BY WEIGHT, AND HAVING AN ADDITION OF AT LEAST ONE OF THE ELEMENTS SELECTED FROM THE GROUP CONSISTING OF COPPER, CADMIUM, ANTIMONY, BISMUTH AND MANGANESE, SAID ADDITION RANGING FROM 2% TO 6% BY WEIGHT, AND A FURTHER ADDITION OF MANGNESIUM AMOUNTING TO ABOUT .5% TO 5% BY WEIGHT TO ADJUST THE EXTRUSION PRESSURE TO AT LEAST 4,100 KG./CM.2, THE BALANCE BEING CERIUM (MISCH METAL).
Claim 2
Dependent Claim
90 words
A PYROPHORIC MASS SUITABLE FOR EXTRUSION TO PRODUCE FINISHED FLINTS IN ROD FORMATION; CONSISTING ESSENTIALLY OF CERIUM (MISCH METAL) WITH ZINC RANGING FROM 5% TO 25% BY WEIGHT, AND HAVING AN ADDITION OF AT LEAST ONE OF THE ELEMENTS SELECTED FROM THE GROUP CONSISTING OF COPPER, CADMIUM, ANTIMONY, BISMUTH AND MANGANESE, SAID ADDITION RANGING FROM 2% TO 6% BY WEIGHT, AND A FURTHER ADDITION OF MANGNESIUM AMOUNTING TO ABOUT .5% TO 5% BY WEIGHT TO ADJUST THE EXTRUSION PRESSURE TO AT LEAST 4,100 KG./CM.2, THE BALANCE BEING CERIUM (MISCH METAL).
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) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |