I-beam mast
The broken lines showing a truck and drilling equipment in
Claims
I claim the ornamental design for an I-beam mast, as shown and described.
| 2035044 | March 1936 | Carle |
| D211266 | June 1968 | Zweifel et al. |
| D224980 | October 1972 | Sterner |
| D226559 | March 1973 | Sutphen |
| D231206 | April 1974 | Spain |
| D240719 | July 1976 | Gardenhour |
| D244709 | June 14, 1977 | Sano |
| 4232610 | November 11, 1980 | Theurer |
| 4397396 | August 9, 1983 | Kay et al. |
| 4518090 | May 21, 1985 | Thomasson |
| D299179 | December 27, 1988 | Bernabe, Jr. |
| 4988009 | January 29, 1991 | Atkinson |
| 5140929 | August 25, 1992 | Gaspard |
| D348135 | June 21, 1994 | Goto et al. |
| D467403 | December 17, 2002 | Aquino |
| 7231741 | June 19, 2007 | Norwood |
| 20070246435 | October 25, 2007 | Crookston |
| 20070256998 | November 8, 2007 | Kumar |
Type: Grant
Filed: Jun 10, 2009
Date of Patent: Mar 23, 2010
Assignee: North Star Falcon Industries, LLC (Stillwater, OK)
Inventor: Scott B. Kusselson (Stillwater, OK)
Primary Examiner: Cynthia E Ramirez
Attorney: QuickPatents, Inc.
Application Number: 29/338,376