Loading patent…

Back to results

US D348,931 SGranted

Vision tester

AssigneePRIO Corporation

InventorJonathan G. Torrey

Life of this patent

Estimating the term…

Download PDF Find prior artPrior art Similar

Abstract Drawings Claims Description

Abstract

The abstract isn’t available for this document.

Claims1

Dependent claims

The ornamental design for a vision tester, as shown and described.

Facts

Application: 29/001,294Filed 9 Nov 1992 · continuation in part
Priority: 12 Dec 1988
Granted: 19 Jul 1994
Term ends: Not estimatedThe source records don’t support an estimate.

Classification0 codes

Family

Serial282,596Parent of this continuation-in-part · filed 12 Dec 1988
Serial665,902Parent of this continuation-in-part · filed 7 Mar 1991
US 4,998,820 AParent of this continuation-in-part
US D348,931 SThis patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

USPTO full text and PDF
Patent Center file history
USPTO assignment records
Espacenet
Google Patents