Patent US3589951A successfully refreshed from Google Patents.
US3589951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid weld backing-up flux compositions
Assignee: Kobe Steel Ltd
•
Filing: 1967-03-02
•
Granted: 1971-06-29
•
Expires: 1987-03-02
Abstract
Abstract SOLID WELD BACKING-UP FLUX COMPOSITION FOR ONE SIDE WELDING OPERATION COMPRISING THE CONVENTIONAL PRINCIPAL FLUX COMPONENTS AND ADDITIVE METALLIC POWDER OR POWDERS WHICH ARE BONDED TOGETHER BY MEANS OF A BONDING AGENT AND HAVING THE APPARENT POROSITY WITHIN THE RANGE FROM 25 TO 60%. COMBINATIONS OF SAID SOLID WELD BACKING-UP FLUX COMPOSITION AND SUPPORT MEANS THEREFOR FOR ONE SIDE WELDING OPERATION COMPRISING THE FLUX COMPOSITION SECURED TO A FLEXIBLE SHEET, SANDWICHED BETWEEN FIBROUS SHEETS OR RECEIVED IN A METALLIC CASING WITH AT LEAST ONE AREA OF THE FLUX COMPOSITION EXPOSED.
Inventors
- 👤 Masayasu Arikawa
- 👤 Motomi Kano
- 👤 Hitosi Shioyama
- 👤 Toshihiko Okamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:39
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0255
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |