Stark; Hugh Lithgow
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stark; Hugh Lithgow.The latest application filed is for "mast lift and mast lift system".
- Stark; Hugh Lithgow - Kareela AU
- Stark; Hugh Lithgow - New South Wales AU
| Patent | Date |
|---|---|
| Mast lift base Grant D704,914 - Campbell , et al. May 13, 2 | 2014-05-13 |
| Mast Lift And Mast Lift System App 20130240296 - Campbell; Geoffrey George ; et al. | 2013-09-19 |
| Mast lift and mast lift system Grant 8,505,688 - Campbell , et al. August 13, 2 | 2013-08-13 |
| Mast lift and mast lift system Grant 8,292,039 - Campbell , et al. October 23, 2 | 2012-10-23 |
| Lever-actuated retractable wheel and movable platform using same Grant 7,896,366 - Campbell , et al. March 1, 2 | 2011-03-01 |
| Mast Lift and Mast Lift System App 20100294594 - Campbell; Geoffrey George ; et al. | 2010-11-25 |
| Slip clutch Grant 7,766,750 - Campbell , et al. August 3, 2 | 2010-08-03 |
| Mast Lift and Mast Lift System App 20080314690 - Campbell; Geoffrey George ; et al. | 2008-12-25 |
| Lever-actuated retractable wheel and movable platform using same App 20080088102 - Campbell; Geoffrey George ; et al. | 2008-04-17 |
| Slip clutch App 20080090664 - Campbell; Geoffrey George ; et al. | 2008-04-17 |
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