IP Library Granted Patent US 6,822,241
Granted Patent Utility
US 6,822,241 · App. 10/264,599

Emitter device with focusing columns

Inventors: David M. Schut, Alexander Govyadinov, Xioofeng Yang
Patented Case View Patent ↗
Granted: Nov 23, 2004 Filed: Oct 3, 2002
Inventors
David M. Schut
Alexander Govyadinov
Xioofeng Yang
Assignee (at issue)
Hewlett-Packard Development Company, L.P.

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,822,241
App. No.
10/264,599
Filed
2002-10-03
Granted
2004-11-23
Kind
B2