IP Library › Patent Application 09758888
Patent Application Utility
App. No. 09/758,888 · Confirmation No. 8429

Air filtration device including filter change indicator

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2001-01-11 TRNA Transmittal of New Application 1 View
2001-01-11 SPEC Specification 14 View
2001-01-11 CLM Claims 4 View
2001-01-11 ABST Abstract 1 View
2001-01-11 DRW Drawings-only black and white line drawings 14 View
2001-01-11 OATH Oath or Declaration filed 3 View
Monitor This Case
Get email alerts when status or documents change.
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 application's details
Quick Facts
App. No.
09/758,888
Filed
2001-01-11
Granted
2001-11-13
Pub. No.
US20010037732A1
Art Unit
1724
PTA
-120 days