Air filter

View Patent ↗

Loading inventors, assignments & file history…

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.

Pre-filled with this patent's details

Quick Facts

External Links

Claims (1)

The ornamental design for an air filter, as shown and described.

Assignments (4)

PATENT SECURITY AGREEMENT (ABL) Recorded May 3, 2024

From: CURTIS INSTRUMENTS, INC.; DISCOVERY ENERGY, LLC; HEILA TECHNOLOGIES, INC.

To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT

PATENT SECURITY AGREEMENT (TERM) Recorded May 2, 2024

From: CURTIS INSTRUMENTS, INC.; DISCOVERY ENERGY, LLC; HEILA TECHNOLOGIES, INC.

To: BANK OF AMERICA, N.A, AS COLLATERAL AGENT

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 1, 2024

From: KOHLER CO.

To: DISCOVERY ENERGY, LLC

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 25, 2018

From: WOLF, CHRISTOPHER; HUDAK, ERIC B.; FORMANEK, MICHELLE; SMIES, MICHAEL E.

To: KOHLER CO.