Laurence P. Armstrong

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Weyerhaeuser, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Longitudinal frame member and spline
- Patent number 8,156,994
- Issue date Apr 17, 2012
- FreshAir Screen Technology, LLC
- Laurence P. Armstrong
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Longitudinal frame member and spline
- Patent number 7,735,540
- Issue date Jun 15, 2010
- FreshAir Screen Technology, LLC
- Laurence P. Armstrong
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Method of manufacturing screen assembly
- Patent number 7,316,758
- Issue date Jan 8, 2008
- FreshAir Screen Technology, LLC
- Laurence P. Armstrong
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Frame assembly with a flush corner appearance
- Patent number 6,643,988
- Issue date Nov 11, 2003
- AMSCO Engineered Products
- Laurence P. Armstrong
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Adjustable roller assembly
- Patent number 5,845,363
- Issue date Dec 8, 1998
- Quanex Corporation
- Maitland J. Brempell
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Adjustable roller assembly for sliding doors
- Patent number 4,850,078
- Issue date Jul 25, 1989
- Nichols-Homeshield, Inc.
- Scott A. Libby
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
LONGITUDINAL FRAME MEMBER AND SPLINE
- Publication number 20100206364
- Publication date Aug 19, 2010
- Laurence P. Armstrong
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
LONGITUDINAL FRAME MEMBER AND SPLINE
- Publication number 20070256800
- Publication date Nov 8, 2007
- Laurence P. Armstrong
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
Longitudinal frame member and spline
- Publication number 20060070707
- Publication date Apr 6, 2006
- Laurence P. Armstrong
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
Screen assembly and method of manufacturing same
- Publication number 20050006038
- Publication date Jan 13, 2005
- Laurence P. Armstrong
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS