David C. Kumpf

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Canton, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Dirt separation system for a vacuum cleaner
- Patent number 7,360,275
- Issue date Apr 22, 2008
- David M. Allgeier
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Removable dirt separation system for a vacuum cleaner
- Patent number 6,875,255
- Issue date Apr 5, 2005
- The Hoover Company
- William G. Alford
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

Information Patent Application
Dirt separation system for a vacuum cleaner
- Publication number 20060282977
- Publication date Dec 21, 2006
- David M. Allgeier
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
Removable dirt separation system for a vacuum cleaner
- Publication number 20030208878
- Publication date Nov 13, 2003
- William G. Alford
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...