Tandem sub
Description
The broken lines in the drawings depict portions of the tandem sub that form no part of the claimed design.
Claims
The ornamental design for a tandem sub as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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- https://nbguangway.en.made-in-china.com/product/YJTUqtHABlpD/China-Perforating-Gun-Bullet-Tandem-Sub-for-Perforating-Gun-Joints.html (Year: 2025).
Patent History
Patent number: D1078807
Type: Grant
Filed: Jun 20, 2023
Date of Patent: Jun 10, 2025
Assignee: XConnect, LLC (Denver, CO)
Inventor: Shelby L. Sullivan (Minot, ND)
Primary Examiner: Patricia A Palasik
Application Number: 29/878,313
Type: Grant
Filed: Jun 20, 2023
Date of Patent: Jun 10, 2025
Assignee: XConnect, LLC (Denver, CO)
Inventor: Shelby L. Sullivan (Minot, ND)
Primary Examiner: Patricia A Palasik
Application Number: 29/878,313
Classifications