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US2756497A Expired / Lapsed US ⏱️ 0.0 years remaining

Flux and method of soldering with same

Assignee: McCord Corp
•
Filing: 1952-07-09
•
Granted: 1956-07-31
•
Expires: 1972-07-09
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Abstract

No abstract record available.

Inventors

  • 👤 William S Gale

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 00:10
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3615

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 240 words
THAT METHOD OF JOINING METALS WHICH INCLUDES THE STEPS OF: APPLYING FLUX TO A METAL OF THE JOINT SYSTEM, ACTIVATING SAID FLUX, APPLYING MOLTEN SOLDER TO THE FLUXED AREA OF SAID METAL, AND EMPLOYING SAID SOLDER TO INTEGRALLY UNITE SAID METAL TO ANOTHER METAL OF THE JOINT SYSTEM, SAID FLUX ESSENTIALLY COMPRISING AS A FIRST COMPONENT AT LEAST ONE HALIDE SALT OF A METAL OF THE GROUP CONSISTING OF ZINC, CADMIUM, TIN, ANTIMONY, BISMUTH, AND LEAD; AS A SECOND COMPONENT AT LEAST ONE SALT OF THE GROUP CONSISTING OF SEMICARBAZIDE SALTS, HYDRAZINE SALTS, SALTS OF HYDROCARBON SUBSTITUTED HYDRAZINES, AND SALTS OF HETEROCYCLIC SUBSTITUTED HYDRAZINES; AND AS A THIRD COMPONENT AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROXYLAMINE SALTS, MORPHOLINE SALTS, AMMONIUM SALTS, ALKYLAMINE SALTS, ARYLAMINE SALTS, ARALKYLAMINE SALTS, ALKARYLAMINE SALTS, CYCLOCALKYLAMINE SALTS, SATURATED CYCLIC HYDROCARBON AMINE SALTS IN WHICH THE AMINO NITROGEN IS PRESENT IN THE CYCLIC STRUCTURE, R1R2R3R4NX IN WHICH R1, R2, R3, AND R4 ARE SELECTED FROM THE GROUP CONSISTING OF THE METHYL AND ETHYL RADICALS AND IN WHICH X IS A HALOGEN ATOM, AND ALIPHATIC CARBOXYLIC ACID AMIDES CONTAINING FROM ONE TO SIX CARBON ATOMS, SAID FLUX COMPRISING FROM ABOUT 5 TO ABOUT 90% BY WEIGHT OF SAID FIRST COMPONENT, BASED UPON THE WEIGHT OF SAID FIRST, SECOND AND THIRD COMPONENTS, AND FROM ABOUT 2 TO ABOUT 90% BY WEIGHT OF SAID THIRD COMPONENT, BASED UPON THE WEIGHT OF SAID SECOND AND THIRD COMPONENTS.
Claim 2
Dependent Claim 194 words
A COMPOSITION OF MATTER ESSENTIALLY COMPRISING AS A FIRST COMPONENT AT LEAST ONE HALIDE SALT OF A METAL OF THE GROUP CONSISTING OF ZINC, CADMIUM, TIN, ANTIMONY, BISMUTH AND LEAD; AS A SECOND COMPONENT AT LEAST ONE SALT OF THE GROUP CONSISTING OF SEMICARBAZIDE SALTS, HYDRAZINE SALTS, SALTS OF HYDROCARBON SUBSTITUTED HYDRAZINES, AND SALTS OF HETEROCYCLIC SUBSTITUTED HYDRAZINES; AND AS A THIRD COMPONENT AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROXYLAMINE SALTS, MORPHOLINE SALTS, AMMONIUM SALTS, ALKYLAMINE SALTS, ARYLAMINE SALTS, ARALKYLAMINE SALTS, ALKARYLAMINE SALTS, CYCLOAKYLAMINE SALTS, SATURATED CYCLIC HYDROCARBON AMINE SALTS IN WHICH THE AMINO NITROGEN IS PRESENT IN THE CYCLIC STRUCTURE, R1R2R3R4NX IN WHICH R1, R2, R3, AND R4 ARE SELECTED FROM THE GROUP CONSISTING OF THE METHYL AND ETHYL RADICALS AND IN WHICH X IS A HALOGEN ATOM, AND ALIPHATIC CARBOXYLIC ACID AMIDES CONTAINING FROM ONE TO SIX CARBON ATOMS, SAID COMPOSITION COMPRISING FROM ABOUT 5 TO ABOUT 90% BY WEIGHT OF SAID FIRST COMPONENT, BASED UPON THE WEIGHT OF SAID FIRST, SECOND AND THIRD COMPONENTS, AND FROM ABOUT 2 TO ABOUT 90% BY WEIGHT OF SAID THIRD COMPONENT, BASED UPON THE WEIGHT OF SAID SECOND AND THIRD COMPONENTS.

References Cited (Backward Citations)

US1263656A Cited
US1783642A Cited
US2262072A Cited
US2299166A Cited
US2386813A Cited
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US2612459A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1959-07-31 1960-01-30 1960-07-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1963-07-31 1964-01-30 1964-07-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1967-07-31 1968-01-30 1968-07-31 $7700.00 Window Closed / Lapsed

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