Hinge device for rotating door
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 16, 2021
Grant Date -
N/A
app pub date -
Nov 7, 2019
filing date -
Sep 30, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
The present invention relates to a hinge device for a rotating door, and more particularly, to a hinge device for a rotating door, which is mounted on the rotating door so that the door can be opened and closed while rotating in various ways. The hinge device for the rotating door of the present invention rotates by an external force and then rotated in a free stop manner at a certain section, and automatically rotates in a reverse direction at a section where the hinge device reversely rotates after free stop rotation.
First Claim
Other Claims data not available
Family
Loading Family data...
International Classification(s)
- 2019 Application Filing Year
- E05F Class
- 705 Applications Filed
- 507 Patents Issued To-Date
- 71.92 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- E05F Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 16, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 16, 2032 |