LexDanaLexDanabeta
Inventor

Douglas J. Nattrass

Inventor
Lansdale, PA, US

Overview

2→
Patents
1991–1998
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A47Gprimary
A47GHousehold or table equipment50%
B60JWindows, windscreens, non-fixed roofs, doors, or similar devices for vehicles50%
PatentTitleYear
5,820,196'Vehicle transport cover'19985,023,969'Novel blanket/sheet for a double bed'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to NATTRASS DOUGLAS J (1)· patent assignee history
1991Based in Chalfont, PA, US· patent location history
1998Patents assigned to DU PONT (1)· patent assignee history
1998Based in Lansdale, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DU PONT11998
NATTRASS DOUGLAS Jself11991
Locations
LocationPatentsSpan
Lansdale, Pennsylvania, US11998
Chalfont, Pennsylvania, US11991