Inventor

Norbert S. Wolak

Inventor

Cicero, IL, US

Overview

2→

Patents

1976–1977

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.

B61Dprimary

B61DBody details or kinds of railway vehicles20%

E05BLocks20%

E05DHinges or suspension devices for doors, windows or wings20%

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 thereof20%

Y10TTechnical subjects covered by former us classification20%

PatentTitleYear

4,048,755'Full length door arrangement for railway house car'1977 3,998,484'Sliding door locking device'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1977Patents assigned to EVANS PROD CO (2)· patent assignee history

1976–1977Based in Cicero, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EVANS PROD CO	2	1976–1977

Locations

Location	Patents	Span
Cicero, Illinois, US	2	1976–1977