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Last Updated: December 15, 2025

Claims for Patent: 5,501,673

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Summary for Patent: 5,501,673

Title:	Injection cartridge
Abstract:	An injection cartridge of the dual-chamber type has a bypass connection between its two chambers which is arranged such that the interior wall of the cartridge is modified in a determined area in such a way that the movable wall between the two chambers does not seal completely against the interior wall in said area.
Inventor(s):	Birger Hjertman, Gustav Levander, Olle Ljunquist
Assignee:	Pfizer Health AB
Application Number:	US08/325,209
Patent Claims:

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