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Patent US5508694A successfully refreshed from Google Patents.
US5508694A
Expired / Lapsed
US
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Method and apparatus for programming a spare key into a security system
Assignee: Visteon Global Technologies Inc
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Filing: 1994-12-16
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Granted: 1996-04-16
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Expires: 2014-12-16
Abstract
Abstract A method for programming a lock to accept a key. The device will erase all the codes currently stored in the memory and program a new key value. The process requires several steps of turning the key to one of two positions when an LED is illuminated to indicate that the key must be rotated. After successful responses, all the codes currently stored are cleared and the security code of the new key is stored.
Inventors
- 👤 William D. Treharne
- 👤 Ronald G. Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:18
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/20; B60R25/24; B60R25/2009; G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00817; G07C2009/00753; G07C2009/00761; G07C2009/00769; G07C2009/00793; G07C2009/00841; G07C2209/00; G07C2209/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
155 words
A method for reprogramming a security system having light means for providing feedback to a system operator, a lock having at least a first position and a second position, a timer and a memory to accept a key having an electronic security code, comprising the steps of: inserting a key in said lock in a first position whose electronic security code has not been previously stored in said memory; moving said key in said lock to a second position for a first time period; illuminating said light means after said first time period; moving said key in said lock back to said first position within a second time period from illumination of said light means; clearing said memory of all previously stored security codes; storing the electronic security code of said inserted key in said memory; and storing a second electronic security code in said memory in response to receiving said first electronic security code.
Claim 2
Independent Claim
155 words
A method for reprogramming a security system having light means for providing feedback to a system operator, a lock having at least a first position and a second position, a timer and a memory to accept a key having an electronic security code, comprising the steps of: inserting a key in said lock in a first position whose electronic security code has not been previously stored in said memory; moving said key in said lock to a second position for a first time period; illuminating said light means after said first time period; moving said key in said lock back to said first position within a second time period from illumination of said light means; clearing said memory of all previously stored security codes; storing the electronic security code of said inserted key in said memory; and storing a second electronic security code in said memory in response to receiving said first electronic security code.
Claim 3
Dependent Claim
16 words
The method as recited in claim 1 wherein said first and second time periods are random.
Claim 4
Dependent Claim
100 words
The method as recited in claim 1 further comprising the steps before the step of clearing said memory, of: illuminating said light means after a third time period beginning when said key is moved back to said first position; moving said key to said lock to said second position within a fourth time period from illumination of said light means; illuminating said light means after said key is in said second position for a fifth time period; and moving said key to said lock back to said first position within a sixth time period from illumination of said light means.
Claim 5
Dependent Claim
30 words
The method of claim 3 wherein each of said time periods is randomly determined and wherein the sum of said time period is equal to at least about 45 minutes.
References Cited (Backward Citations)
US3821704A
Cited
US3926021A
Cited
US4209782A
Cited
US4144523A
Cited
US4791280A
Cited
US4738334A
Cited
US4972182A
Cited
US4868914A
Cited
US4980680A
Cited
US4990906A
Cited
US5347267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-16 | 1999-10-16 | 2000-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-16 | 2003-10-16 | 2004-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-16 | 2007-10-16 | 2008-04-16 | $7700.00 | Window Closed / Lapsed |