US2548690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering flux
Assignee: Individual
•
Filing: 1949-10-20
•
Granted: 1951-04-10
•
Expires: 1969-10-20
Abstract
No abstract record available.
Inventors
- 👤 Cecil A Vieno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:22
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
49 words
A TINNING COMPOUND FOR SOLDERING CONSISTING ESSENTIALLY OF A PLASTIC SOLUTION OF ABOUT ONE PART BY WEIGHT OF AMMONIUM CHLORIDE, ABOUT THREE PARTS BY WEIGHT OF ZINC CHLORIDE, AND ABOUT THREE PARTS BY WEIGHT OF GLYCERINE; AND ABOUT ONE PART BY WEIGHT OF PULVERIZED SOLDER MIXED IN SAID SOLUTION.
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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |