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
Automatic railroad track gauge
US 2,507,896 A
Filed
: 11/09/1948
Issued
: 05/16/1950
Est. Priority Date
: 11/09/1948
Status: Expired due to Term
Alert
Pin
0
Associated Cases
0
Associated Defendants
0
Product Citations
0
Petitions
1
Forward Citation
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
1 Citation
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
Frank Le Van A
Original Assignee
Frank Le Van A
Inventors
FRANK LE VAN A
Application Number
US03/059,048
Time in Patent Office
553 Days
Field of Search
US Class Current
33/523.1
CPC Class Codes
E01B 2203/16
Guiding or measuring means,...
E01B 35/04
Wheeled apparatus
Subscription Required
This content requires a subscription to view
Contact Us
or
Login
×
×