Patent US2654670A successfully refreshed from Google Patents.
US2654670A
Expired / Lapsed
US
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Flux for treating aluminum and aluminum alloys
Assignee: Pennsylvania Salt Manufacturing Co
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Filing: 1950-04-01
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Granted: 1953-10-06
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Expires: 1970-04-01
Abstract
No abstract record available.
Inventors
- 👤 James A Davis
- 👤 La Verne W Eastwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:37
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A METHOD OF IMPROVING THE CHARACTERISTICS OF ALUMINUM AND ALUMINUM BASE METAL ALLOYS, INCLUDING HEAT - TREATABLE ALLOYS, COMPRISING MAINTAINING SAID ALUMINUM AND ALUMINUM ALLOY IN A MOLTEN STATE, AND INSERTING WITHIN THE BODY OF SAID MOLTEN ALUMINUM AND ALUMINUM ALLOY A TREATING MIXTURE COMPRISING AN ALKALI METAL FLUOBORATE AND AN ALKALI METAL FLUOTITANATE, THE ALKALI METAL OF AT LEAST ONE OF SAID COMPONENTS BEING SODIUM, SAID COMBINED ALKALI METAL FLUOBORATE AND ALKALI METAL FLUOTITANATE BEING USED IN AN AMOUNT OF AT LEAST 0.1% BY WEIGHT OF THE WEIGHT OF THE METAL BEING TREATED.
References Cited (Backward Citations)
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Cited
US1596888A
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US1896201A
Cited
US2085697A
Cited
GB456462A
Cited
US2497119A
Cited
US2447672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |