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
Golf practice device
US 2,933,681 A
Filed
: 04/28/1955
Issued
: 04/19/1960
Est. Priority Date
: 04/28/1955
Status: Expired due to Term
Alert
Pin
0
Associated Cases
0
Associated Defendants
0
Product Citations
0
Petitions
25
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
Harry M. Crain
Original Assignee
Harry M. Crain
Inventors
Crain, Harry M.
Application Number
US03/504,462
Time in Patent Office
1,818 Days
Field of Search
US Class Current
324/180
CPC Class Codes
A63B 2220/805
Optical or opto-electronic ...
A63B 69/3614
using electro-magnetic, mag...
Subscription Required
This content requires a subscription to view
Contact Us
or
Login
×
×