US2978369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering fluxes
Assignee: NL Industries Inc
•
Filing: 1958-03-06
•
Granted: 1961-04-04
•
Expires: 1978-03-06
Abstract
No abstract record available.
Inventors
- 👤 James H Battle
- 👤 Carl H Hack
- 👤 Konig Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:11
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3615; B23K35/3601; B23K35/3603
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A SUBSTANTIALLY RESIDUE-FREE SOLDER FLUX SOLUTION CONSISTING ESSENTIALLY OF TWO COMPONENTS, THE FIRST COMPONENT BEING SELECTED FROM THE CLASS CONSISTING OF AMMONIUM HALIDES AND SUBSTITUTED AMMONIUM HALIDES, AND AS A SECOND COMPONENT HYDROGEN BROMIDE AS UNCOMBINED HYDROBROMIC ACID, SAID FIRST COMPONENT BEING PRESENT IN AMOUNT FROM 0.25 TO 25% BASED ON THE WEIGHT OF SAID SOLDER FLUX SOLUTION, SAID HYDROGEN BROMIDE IN THE FORM OF UNCOMBINED HYDROBROMIC ACID BEING PRESENT IN AMOUNT FROM 0.25 TO 25% BASED ON THE WEIGHT OF SAID SOLDER FLUX SOLUTION, SAID SOLDER FLUX SOLUTION EXHIBITING A DECIDELY ACID PH VALUE.
Claim 2
Dependent Claim
95 words
A SUBSTANTIALLY RESIDUE-FREE SOLDER FLUX SOLUTION CONSISTING ESSENTIALLY OF TWO COMPONENTS, THE FIRST COMPONENT BEING SELECTED FROM THE CLASS CONSISTING OF AMMONIUM HALIDES AND SUBSTITUTED AMMONIUM HALIDES, AND AS A SECOND COMPONENT HYDROGEN BROMIDE AS UNCOMBINED HYDROBROMIC ACID, SAID FIRST COMPONENT BEING PRESENT IN AMOUNT FROM 0.25 TO 25% BASED ON THE WEIGHT OF SAID SOLDER FLUX SOLUTION, SAID HYDROGEN BROMIDE IN THE FORM OF UNCOMBINED HYDROBROMIC ACID BEING PRESENT IN AMOUNT FROM 0.25 TO 25% BASED ON THE WEIGHT OF SAID SOLDER FLUX SOLUTION, SAID SOLDER FLUX SOLUTION EXHIBITING A DECIDELY ACID PH VALUE.
References Cited (Backward Citations)
GB413141A
Cited
US2803572A
Cited
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 |