IP Library › Granted Patent US 858,720
Granted Patent S1
US 858,720 · App. 29/640,237 · Granted Sep 3, 2019

Pipe connecting tube

Inventors: Jong-Tae Lee (Seoul, KR); Kiwoong Hwang (Yangju-si, KR)
Assignees: PPI PYUNGWHA CO., LTD.; PPI America Inc.
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Quick Facts
Patent No.
US 858,720
App. No.
29/640,237
Granted
Sep 3, 2019
Kind
S1
Claims (1)

The ornamental design for a pipe connecting tube, as shown and described.

Assignments (3)
CHANGE OF NAME Recorded Mar 26, 2025
From: PPI CO., LTD.
To: PPI PIPE CO., LTD.
Reel/Frame 070629/0253 →
CHANGE OF NAME Recorded Mar 26, 2025
From: PPI PYUNGWHA CO., LTD.
To: PPI CO., LTD.
Reel/Frame 070629/0360 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2018
From: LEE, JONG-TAE; HWANG, KIWOONG
To: PPI PYUNGWHA CO., LTD.; PPI AMERICA INC.
Reel/Frame 045188/0620 →
Priority Claims (1)
KR 30-2017-0048140 · Oct 17, 2017 · national