US2687362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering flux composition
Assignee: Tennessee Corp
•
Filing: 1951-05-14
•
Granted: 1954-08-24
•
Expires: 1971-05-14
Abstract
No abstract record available.
Inventors
- 👤 Walter H C Rueggeberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:51
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/3615; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A SOLDERING FLUX COMPOSITION CONSISTING ESSENTIALLY OF AN ALKANOLAMMONIUM SALT OF AN ALKYL BENZENE SULFONIC ACID HAVING NOT MORE THAN ABOUT 18 CARBON ATOMS IN THE ALKYL SIDE CHAIN AND EXCESS ALKANOLAMINE IN THE APPROXIMATE PROPORTIONS OF ONE MOLE OF ACID AND FROM 11/2 TO ABOUT THREE MOLES OF ALKANOLAMINE, SAID ALKANOLAMINE BEING SELECTED FROM THE GROUP CONSISTING OF PRIMARY, SECONDARY AND TERTIARY ETHANOLAMINES AND ISOPROPANOLAMINES.
Claim 2
Dependent Claim
66 words
A SOLDERING FLUX COMPOSITION CONSISTING ESSENTIALLY OF AN ALKANOLAMMONIUM SALT OF AN ALKYL BENZENE SULFONIC ACID HAVING NOT MORE THAN ABOUT 18 CARBON ATOMS IN THE ALKYL SIDE CHAIN AND EXCESS ALKANOLAMINE IN THE APPROXIMATE PROPORTIONS OF ONE MOLE OF ACID AND FROM 11/2 TO ABOUT THREE MOLES OF ALKANOLAMINE, SAID ALKANOLAMINE BEING SELECTED FROM THE GROUP CONSISTING OF PRIMARY, SECONDARY AND TERTIARY ETHANOLAMINES AND ISOPROPANOLAMINES.
References Cited (Backward Citations)
US2172533A
Cited
US1785134A
Cited
US1785155A
Cited
US1785135A
Cited
US1949916A
Cited
US2283199A
Cited
US2508501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |