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Inventor

Albert Bischof

Inventor
Norwood Park, IL, US

Overview

2→
Patents
1988–1989
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

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

E05Dprimary
E05DHinges or suspension devices for doors, windows or wings33%
E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof33%
E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates33%
PatentTitleYear
4,804,238'Torsion spring powered door'1989D0295976'Multifunction communication controller'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to AT&T TELETYPE CORP (1)· patent assignee history
1988–1989Based in Norwood Park, IL, US· patent location history
1989Patents assigned to AMERICAN TELEPHONE & TELEGRAPH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AMERICAN TELEPHONE & TELEGRAPH11989
AT&T TELETYPE CORP11988
Locations
LocationPatentsSpan
Norwood Park, Illinois, US21988–1989