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Class Information
Number: 70/429
Name: Locks > Operating mechanism > Key > Tampering prevention or attack defeating > Key securers, fasteners or retainers
Description: Devices retaining the key in association with the lock to prevent manipulation thereof, by unauthorized or surreptitious means, or to prevent the forcible ejection of the key from the key-hole.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7377139 |
Specification cabinet lock |
May. 27, 2008 |
| 7240527 |
Key turning device |
Jul. 10, 2007 |
| 7210320 |
Lock guard system |
May. 1, 2007 |
| 7021095 |
Apparatus and method for controlling access to stored keys |
Apr. 4, 2006 |
| 6734783 |
Gate management system |
May. 11, 2004 |
| 6694787 |
Method of preventing persons from forgetting a door key and being locked out of a room |
Feb. 24, 2004 |
| 6666057 |
Lock with a fixable key |
Dec. 23, 2003 |
| 6513357 |
Key retention mechanism for mail lock box |
Feb. 4, 2003 |
| 6434983 |
Starting and locking/unlocking device for motor vehicle |
Aug. 20, 2002 |
| 6386121 |
Safety deposit box locking system |
May. 14, 2002 |
| 6332344 |
Deadbolt security chain |
Dec. 25, 2001 |
| 6301941 |
Dead-bolt locking device |
Oct. 16, 2001 |
| 6178792 |
Key retaining lock apparatus |
Jan. 30, 2001 |
| 6129029 |
Method and apparatus for accessing safe deposit box |
Oct. 10, 2000 |
| 5950465 |
Deadlock bolt security lock |
Sep. 14, 1999 |
| 5528915 |
Lock assembly |
Jun. 25, 1996 |
| 5269392 |
Restraint/safety belt assembly (ignition key belt) |
Dec. 14, 1993 |
| 5140843 |
Lock conversion mechanism |
Aug. 25, 1992 |
| 4641509 |
Master keyboard |
Feb. 10, 1987 |
| 4018069 |
Key-actuated barrel-type locks |
Apr. 19, 1977 |
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