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Serving leading biopharmaceutical companies globally:

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Generated: November 24, 2017

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Details for Patent: 5,716,338

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Summary for Patent: 5,716,338

Title: Dual-chamber type injection cartridge with bypass connection
Abstract:An injection cartridge (1) of the dual-chamber type having a bypass connection (12) between its two chambers (9, 10) which is arranged such that the interior wall of the cartridge is modified in a predetermined area in such a way that the movable wall (11) between the two chambers does not seal completely against the interior wall in said area. The modification of the wall is arranged as a plurality of lands and grooves (12) which have a direction that is inclined in relation to the longitudinal axis of the cartridge barrel.
Inventor(s): Hjertman; Birger (Hasselby, SE), Pavlu; Bohdan (Huddinge, SE)
Assignee: Pharmacia & Upjohn Aktiebolag (Stockholm, SE)
Application Number:08/448,607
Patent Claim Types:
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Foreign Priority and PCT Information for Patent: 5,716,338

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Sweden9303453Oct 20, 1993
PCT Information
PCT FiledOctober 10, 1994PCT Application Number:PCT/SE94/00949
PCT Publication Date:April 27, 1995PCT Publication Number: WO95/11051

International Patent Family for Patent: 5,716,338

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office0947209► Subscribe
Canada2150253► Subscribe
Germany20022899► Subscribe
Germany69426644► Subscribe
Germany69433044► Subscribe
Denmark0679103► Subscribe
Denmark0947209► Subscribe
European Patent Office0679103► Subscribe
Australia8007694► Subscribe
European Patent Office1188455► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

Express Scripts
Argus Health
Fish and Richardson
Federal Trade Commission
Chinese Patent Office

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