IP Library › Granted Patent US 841,454
Granted Patent S1
US 841,454 · App. 29/621,360 · Granted Feb 26, 2019

Helical drive

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.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 841,454
App. No.
29/621,360
Granted
Feb 26, 2019
Kind
S1
Claims (1)

The ornamental design for a helical drive, as shown and described.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Oct 4, 2022
From: LBC CREDIT AGENCY SERVICES, LLC, AS AGENT
To: UNIRAC, INC.
Reel/Frame 061605/0949 →
SECURITY INTEREST Recorded Oct 1, 2022
From: UNIRAC, INC.
To: LBC CREDIT AGENCY SERVICES, LLC, AS AGENT
Reel/Frame 061587/0852 →
SECURITY INTEREST Recorded Jun 25, 2021
From: UNIRAC, INC.
To: LBC CREDIT AGENCY SERVICES, LLC, AS AGENT
Reel/Frame 056684/0333 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2018
From: SCHUIT, NATHAN; MAYFIELD, JASON
To: UNIRAC INC.
Reel/Frame 047662/0472 →