Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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US Patent 5332832 - Nitrofurantoin crystals
US Patent Issued on July 26, 1994
Estimated Patent Expiration Date:
August 11, 2012Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
August 11, 2012Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractNitrofurantoin particulates comprising discrete particulates of nitrofurantoin wherein:(a) said particulates are larger than about 200 mesh size; and(b) the BET surface area of said particulates is at least about 0.2 M2 /g.Preferably, the surface of said particulates consists essentially of nitrofurantoin monohydrate. Also preferably, said particulates comprise at least about 5%, more preferably at least about 50% of nitrofurantoin monohydrate. Preferred compositions of this invention comprise these nitrofurantoin particulates in an aqueous suspension. The nitrofurantoin particulates of this invention are highly efficacious for the delivery of nitrofurantoin in oral dosage forms.Other References
| InventorsAssigneeApplicationNo. 928140 filed on 08/11/1992US Classes:548/316.1Plural acyclic chalcogens bonded directly at the 2- and at the 4- or 5- positions of the 1,3-diazole ring [e.g., N-(5-nitro-2-furfuryliden)-1- amino-hydantoin, etc.]Field of Search548/316.1, Plural acyclic chalcogens bonded directly at the 2- and at the 4- or 5- positions of the 1,3-diazole ring [e.g., N-(5-nitro-2-furfuryliden)-1- amino-hydantoin, etc.]514/396ImidazolesExaminersPrimary: Higel, Floyd D.Attorney, Agent or FirmUS Patent References2610181, 3007846, 3075973, 3234220, 3317521, 3328258, 3401221, 3446802, 3689654, 3852459, 4122157, Nitrofurantoin sustained release tabletIssued on: 10/24/1978 Inventor: Huber4370313Nitrofurantoin dosage form Issued on: 01/25/1983 Inventor: Davies Foreign Patent References
International ClassesC07D 233/40A61K 009/52 A61K 031/415 |
