Wear resistant ammunition feed ramp for light-weight firearms
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 22, 2017
Issued Date -
N/A
app pub date -
May 16, 2016
filing date -
May 20, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A light-weight firearm and related fabrication method are described for a wear resistant feed ramp for chambering cartridges from an ammunition magazine. In one embodiment, the firearm includes a barrel and a frame defining a magazine well and cartridge feed ramp. A wear insert formed of a different material than the frame is implanted in the feed ramp adjacent to the barrel chamber. The wear insert is then machined in situ to shape forming an obliquely angled wear surface. After machining, both the frame and implanted wear insert undergo a surface hardening process together. The surface hardened wear insert has a greater surface hardness than the surface hardened frame and is better adapted to resist wear after repeated chambering of rounds. In one non-limiting example, the frame may be hard anodized aluminum and the wear insert hard anodized titanium.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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STURM RUGER & COMPANY INC | ONE LACEY PLACE SOUTHPORT CT 06890 |
International Classification(s)

- 2016 Application Filing Year
- F41A Class
- 610 Applications Filed
- 510 Patents Issued To-Date
- 83.61 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Mochak, Richard | Russell, US | 1 | 4 |
# of filed Patents : 1 Total Citations : 4 |
Cited Art Landscape
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Patent Citation Ranking
- 3 Citation Count
- F41A Class
- 20.31 % this patent is cited more than
- 8 Age
Forward Cite Landscape
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 22, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 22, 2029 |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Legal Events
Date | Code | Event | Description |
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Aug 18, 2006 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Aug 22, 2002 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Aug 31, 1998 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Mar 14, 1995 | I | Issuance | |
Mar 01, 1995 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 08, 1994 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Dec 10, 1993 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:IIDA, YOSHINORI;REEL/FRAME:006816/0248 Owner name: TOKYO ELECTRIC CO., LTD., JAPAN Effective Date: Dec 10, 1993 |
Oct 22, 1993 | F | Filing | |
Oct 22, 1993 | PD | Priority Date |

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