IP Library › Granted Patent US 6,618,546
Granted Patent Utility
US 6,618,546 · App. 09/919,287

Recording/playing apparatus and contents managing method

Inventors: Hidetoshi Ichioka, Masaki Ishida
Patented Case View Patent ↗
Granted: Sep 9, 2003 Filed: Jul 30, 2001
Inventors
Hidetoshi Ichioka
Masaki Ishida
Assignee (at issue)
SONY GROUP CORPORATION

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 6,618,546
App. No.
09/919,287
Filed
2001-07-30
Granted
2003-09-09
Kind
B2