Solutions
Empower Patent Analytics
Empower Litigation Defense
Empower License Manager
Use Cases
Patent Licensing
Portfolio Management
Litigation Strategy
Market Intelligence
Data Platform
Contact Us
Login
×
View as Organization
Traffic signal
US 1,949,295 A
Filed
: 12/27/1932
Issued
: 02/27/1934
Est. Priority Date
: 12/27/1932
Status: Expired due to Term
Alert
Pin
0
Associated Cases
0
Associated Defendants
0
Product Citations
0
Petitions
13
Forward Citations
0
Assignments
First Claim
Patent Images
View all claims
0 Assignments
Timeline View
Assignment View
Subscription Required
This content requires a subscription to view
Contact Us
or
Login
Subscription Required
This content requires a subscription to view
Contact Us
or
Login
0 Petitions
Subscription Required
This content requires a subscription to view
Contact Us
or
Login
Accused Products
Subscription Required
This content requires a subscription to view
Contact Us
or
Login
Citations
0 Claims
Specification
Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
Current Assignee
Alvin F. Dean
Original Assignee
Alvin F. Dean
Inventors
Dean, Alvin F.
Application Number
US02/649,027
Time in Patent Office
427 Days
Field of Search
US Class Current
404/11
CPC Class Codes
E01F 13/105
depressible by right-way tr...
E01F 9/602
Upright or projecting signs...
Subscription Required
This content requires a subscription to view
Contact Us
or
Login
×
×