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
Oxygen mask
US 2,818,861 A
Filed
: 08/07/1952
Issued
: 01/07/1958
Est. Priority Date
: 08/07/1952
Status: Expired due to Term
Alert
Pin
0
Associated Cases
0
Associated Defendants
0
Product Citations
0
Petitions
6
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
Allan M. Russell
Original Assignee
Allan M. Russell
Inventors
Russell, Allan M.
Application Number
US03/303,030
Time in Patent Office
1,979 Days
Field of Search
US Class Current
128/206.24
CPC Class Codes
A62B 18/00
Breathing masks or helmets,...
A62B 18/025
Halfmasks A62B23/02 takes p...
Subscription Required
This content requires a subscription to view
Contact Us
or
Login
×
×