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Generated: April 26, 2017

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Details for Patent: 4,443,432

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Summary for Patent: 4,443,432

Title: Ophthmalic irrigating solution
Abstract:An ophthalmic irrigating solution useful for irrigating the human eye contains sodium, potassium, magnesium, calcium, chloride, and bicarbonate ions as well as dextrose and glutathione in proportions consistent with the osmotic stability and continued metabolism of the endothelial cells. The irrigating solution is prepared by mixing a first basic solution which provides the bicarbonate and a second acidic solution which provides the calcium, magnesium, dextrose and glutathione. The first and second solutions may be stored as stable, sterile solutions for extended periods of time and mixed within 24 hours of use.
Inventor(s): Garabedian; Michael E. (Arlington, TX), Roehrs; Robert E. (Fort Worth, TX)
Assignee: Alcon Laboratories, Inc. (Forth Worth, TX)
Application Number:06/308,386
Patent Claim Types:
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Use; Formulation;

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International Patent Family for Patent: 4,443,432

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia8853282► Subscribe
Canada1187799► Subscribe
Germany3275975► Subscribe
Denmark441782► Subscribe
Denmark159099► 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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