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|Title:||Aerosol dispenser comprising an indicator assembly|
|Abstract:||An aerosol dispenser for use with an aerosol vial. The dispenser contains an assembly that indicates the quantity of doses dispensed from or remaining in the aerosol vial. The assembly comprises a rotatable indicator comprising a circumferential rack that is engaged by a worm-gear. Reciprocal movement of an aerosol vial within the dispenser causes rotation of the worm-gear which in turn causes rotation of the rack.|
|Inventor(s):||Wass; Anthony C. L. (Lincs, GB), Law; Brian R. (Leicester, GB)|
|Assignee:||Minnesota Mining and Manufacturing Company (St. Paul, MN)|
Patent Claim Types:|
see list of patent claims
|Device; Use; Formulation; Delivery;|
|Foriegn Application Priority Data|
|Foreign Country||Foreign Patent Number||Foreign Patent Date|
|United Kingdom||9025654||Nov 26, 1990|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
|European Patent Office||0559757||► subscribe|
| This preview shows a limited data set|
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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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