All
All
Patent Litigation
Parties
Patents
News
Judges
Law Firms
Attorneys
Venues
Please enter minimum 2 characters
All
Litigation
Parties
Patents
News
Judges
Law Firms
Attorneys
Venues
Use Cases
Litigation Research
Litigation Strategy
Risk Analysis
Business Development
Active Matter Management
Monitoring
Contact Us
Login
×
View as Organization
Changeover valve
US 2,641,273 A
Filed
: 10/18/1947
Issued
: 06/09/1953
Est. Priority Date
: 10/18/1947
Status: Expired due to Term
Alert
Pin
0
Associated Cases
0
Associated Defendants
0
Product Citations
0
Petitions
36
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
36 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
Harry Siebens Norman
Original Assignee
Harry Siebens Norman
Inventors
HARRY SIEBENS NORMAN
Application Number
US02/780,715
Time in Patent Office
2,061 Days
Field of Search
US Class Current
137/113
CPC Class Codes
F17C 13/045
Automatic change-over switc...
Y10T 137/2569
Control by depletion of source
Subscription Required
This content requires a subscription to view
Contact Us
or
Login
×
×