Gibson; Duane M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gibson; Duane M..The latest application filed is for "chain saw guide bar for tree harvester".
- Gibson; Duane M. - Milwaukie OR
| Patent | Date |
|---|---|
| Chain saw guide bar for tree harvester Grant 6,148,547 - Seigneur , et al. November 21, 2 | 2000-11-21 |
| Guide bar mount for a tree harvester Grant 5,987,786 - Gibson , et al. November 23, 1 | 1999-11-23 |
| Chain tensioner for chain saw Grant 5,896,670 - Gibson , et al. April 27, 1 | 1999-04-27 |
| Hand held cutting tools Grant 4,627,165 - Gibson December 9, 1 | 1986-12-09 |
| Saw chain sharpening method and apparatus Grant 4,530,258 - Gibson , et al. July 23, 1 | 1985-07-23 |
| Chain saw Grant 4,316,327 - Scott , et al. February 23, 1 | 1982-02-23 |
| Portable saw Grant 4,272,889 - Scott , et al. June 16, 1 | 1981-06-16 |
| Vegetation Cutter Assemblies Grant 3,594,998 - Graversen , et al. July 27, 1 | 1971-07-27 |
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