Anti-ligature lever
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 21, 2023
Grant Date -
Apr 2, 2020
app pub date -
Sep 23, 2019
filing date -
Oct 2, 2018
priority date (Note) -
In Force
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
An anti-ligature lock having a locking mechanism for retracting a latch between a locked and an unlocked position. The anti-ligature lock includes a lock handle rotatable about the axis and operatively connected to a lock mechanism hub to rotate the hub and retract the latch between the locked and the unlocked positions. The anti-ligature lock includes a connector between the hub and the lock handle and rotatable about the axis, the connector having a female portion having an opening with walls elongated in a direction normal to the axis and a male portion having projections extending in opposite directions normal to the axis, the male portion extending within the female portion opening and having a neutral position wherein one of the male or female portion may be partially rotated in either direction about the axis with respect to the other of the male or female portion without the male portion projections contacting the female portion opening walls.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SARGENT MANUFACTURING COMPANY | 110 SARGENT DRIVE NEW HAVEN CT 06511 |
International Classification(s)

- 2019 Application Filing Year
- E05B Class
- 1193 Applications Filed
- 809 Patents Issued To-Date
- 67.82 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Riley, Daniel W | Meriden, US | 6 | 5 |
# of filed Patents : 6 Total Citations : 5 | |||
Sangster,, Jr Richard D | Madison, US | 5 | 5 |
# of filed Patents : 5 Total Citations : 5 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- E05B Class
- 0 % this patent is cited more than
- 2 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 21, 2026 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 21, 2030 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 21, 2034 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Dec 30, 2024 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jul 07, 2022 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SEIKO EPSON CORPORATION;REEL/FRAME:061301/0770 Owner name: MICROCHIP TECHNOLOGY INCORPORATED, ARIZONA Effective Date: Jul 07, 2022 |
May 11, 2021 | P | Publication | |
Apr 21, 2021 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Apr 09, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
Jan 08, 2021 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
Sep 03, 2020 | P | Published | |
Feb 27, 2020 | F | Filing | |
Feb 27, 2020 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Feb 27, 2020 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ONISHI, YASUNORI;CHINDO, KOJI;HAYASHI, NOBUHITO;SIGNING DATES FROM 20200122 TO 20200127;REEL/FRAME:051946/0565 Owner name: SEIKO EPSON CORPORATION, JAPAN |
Feb 28, 2019 | PD | Priority Date |

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