US5689699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic verification of authorization in retention management schemes for data processing systems
Assignee: International Business Machines Corp
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Filing: 1992-12-23
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Granted: 1997-11-18
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Expires: 2012-12-23
Abstract
Abstract In a retention management scheme, an object, such as a document or folder, is provided with an expiration time in the form of a time stamp attribute. The identification of the security subject providing the expiration time is also an attribute of the object. When the expiration time occurs, the authorization of the security subject is checked. If the security subject lacks authority to delete the expiration time, then the object is maintained on the data processing system and the expiration time is ignored. If the security subject has the authority to delete at the expiration time, then the object is deleted.
Inventors
- 👤 William E. Howell
- 👤 Hari N. Reddy
- 👤 Diana S. Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:44
CPC Classifications
G; G06; G06F; G06F16/00; G06F16/90; G06F16/93; G06F2216/00; G06F2216/09; Y; Y10; Y10S; Y10S707/00; Y10S707/99931; Y10S707/99939
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
75 words
A method of deleting an object in a data processing system, said object being provided with an expiration time by a security subject, comprising the steps of: a) determining when said expiration time has occurred; b) when said expiration time has occurred, determining if said security subject has authority to delete said object; and c) deleting said object if said security subject has authority to delete, otherwise maintaining said object on said data processing system.
Claim 2
Independent Claim
75 words
A method of deleting an object in a data processing system, said object being provided with an expiration time by a security subject, comprising the steps of: a) determining when said expiration time has occurred; b) when said expiration time has occurred, determining if said security subject has authority to delete said object; and c) deleting said object if said security subject has authority to delete, otherwise maintaining said object on said data processing system.
Claim 3
Dependent Claim
34 words
The method of claim 1 wherein said step of determining when said expiration time has occurred further comprises the step of comparing said expiration date to a current time of said data processing system.
Claim 4
Dependent Claim
100 words
A data processing system having an object located thereon, said object having an expiration time provided by a security subject, comprising: a) means for determining when said expiration time has occurred; b) means for determining if said security subject has the authority to delete said object, said means for determining if said security subject has the authority to delete said object being responsive to said means for determining when said expiration time has occurred; and c) means for deleting said object if said security subject has authority to delete and for otherwise maintaining said object on said data processing system.
Claim 5
Dependent Claim
100 words
A data processing system having an object located thereon, said object having an expiration time provided by a security subject, comprising: a) means for determining when said expiration time has occurred; b) means for determining if said security subject has the authority to delete said object, said means for determining if said security subject has the authority to delete said object being responsive to said means for determining when said expiration time has occurred; and c) means for deleting said object if said security subject has authority to delete and for otherwise maintaining said object on said data processing system.
Claim 6
Dependent Claim
35 words
The data processing system of claim 3 wherein said means for determining when said expiration time has occurred further comprises means for comparing said expiration date to a current time of said data processing system.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-17 | 2001-05-19 | 2001-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-17 | 2005-05-19 | 2005-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-17 | 2009-05-19 | 2009-11-18 | $7700.00 | Window Closed / Lapsed |