Rifle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 26, 2016
Grant Date -
Sep 3, 2015
app pub date -
Mar 12, 2014
filing date -
May 7, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A rifle with an upper receiver and a barrel attached to the upper receiver and including a bolt carrier, and operating, buffer, and cooling systems. The operating system includes a cylinder and a piston coupled to receive propelling gases from the barrel. As the piston moves between retracted and extended positions the bolt carrier is moved between closed and open positions. The bolt carrier includes a weight movable within a guide frame between rearward and forward limits. The buffer system includes a compression spring in a tube attached to the upper receiver in abutting engagement with the bolt carrier. A partially fluid filled cylinder is attached to a coil of the spring and includes a piston and shaft. The piston is formed so that fluid in the cylinder restricts movement in one direction and allows free movement in a second direction.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2014 Application Filing Year
- F41C Class
- 220 Applications Filed
- 186 Patents Issued To-Date
- 84.55 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 17 Citation Count
- F41C Class
- 84.04 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 26, 2027 |
