loadpatents
Patent applications and USPTO patent grants for Lewellen; Richard R..The latest application filed is for "educational device to measure the strength and deflection of a truss".
Patent | Date |
---|---|
Educational device to measure the strength and deflection of a truss App 20060191352 - Lewellen; Richard R. | 2006-08-31 |
Method and apparatus kit for demonstrating archimedes' principle Grant 6,957,960 - Lewellen October 25, 2 | 2005-10-25 |
Method And Apparatus Kit For Demonstrating Archimedes' Principle App 20050191602 - Lewellen, Richard R. | 2005-09-01 |
Outer surface of a pair of side panels for a dump truck body Grant D444,753 - Smith , et al. July 10, 2 | 2001-07-10 |
Outer surface of a pair of side panels for a dump truck body Grant D435,499 - Smith , et al. December 26, 2 | 2000-12-26 |
Cab protector for a dump truck body Grant D429,676 - Smith , et al. August 22, 2 | 2000-08-22 |
Portable workbench Grant D361,216 - Lewellen , et al. August 15, 1 | 1995-08-15 |
Multipurpose portable workbench Grant 5,351,730 - Lewellen , et al. October 4, 1 | 1994-10-04 |
Hamper Grant D344,167 - Hobson , et al. February 8, 1 | 1994-02-08 |
Newspaper bundling rack Grant D333,051 - Craft, Jr. , et al. February 9, 1 | 1993-02-09 |
Cassette storage container Grant 4,871,064 - Hehn , et al. October 3, 1 | 1989-10-03 |
Computerized electronic robot controller Grant D277,856 - Lewellen March 5, 1 | 1985-03-05 |
Apparatus for melting and dispensing thermoplastic material Grant D276,617 - Scholl , et al. December 4, 1 | 1984-12-04 |
Thermoplastic material melting apparatus Grant D270,353 - Lewellen August 30, 1 | 1983-08-30 |
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