IP Library Granted Patent US 6,557,648
Granted Patent Utility
US 6,557,648 · Confirmation No. 3166

OPERATION MODE SWITCHING MECHANISM FOR A HAMMER DRILL

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Code Description Pages PDF
2001-10-17 TRNA Transmittal of New Application 2 View
2001-10-17 SPEC Specification 13 View
2001-10-17 CLM Claims 3 View
2001-10-17 ABST Abstract 1 View
2001-10-17 DRW Drawings-only black and white line drawings 4 View
2001-10-17 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,557,648
App. No.
09/978,077
Filed
2001-10-17
Granted
2003-05-06
Pub. No.
US20020046847A1
Art Unit
3721
PTA
0 days