IP Library › Granted Patent US 6,403,659
Granted Patent Utility
US 6,403,659 · App. 09/467,312

Sealer from SDA asphalt

Inventors: D. Chris Boyer, Patricia K. Doolin
Patented Case View Patent ↗
Granted: Jun 11, 2002 Filed: Dec 20, 1999
Inventors
D. Chris Boyer
Patricia K. Doolin
Assignee (at issue)
Marathon Ashland Petroleum LLC

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 6,403,659
App. No.
09/467,312
Filed
1999-12-20
Granted
2002-06-11
Kind
B1