Patent US4727368A successfully refreshed from Google Patents.
US4727368A
Expired / Lapsed
US
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Electronic real estate lockbox system
Assignee: SUPRA GROUP Inc
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Filing: 1986-02-21
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Granted: 1988-02-23
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Expires: 2006-02-21
Abstract
Abstract Real estate lockbox and key designs are disclosed which provide a variety of operational features. Also disclosed is a comprehensive system that allows real estate boards and agencies to efficiently manage their lockbox operations. Features provided by the system include the ability to record all accesses to all lockboxes; transfer all or part of such records from the lockboxes to the real estate agency or board; organize and review such records at the agency or board offices; disable operation of various lockboxes during certain hours of the day; facilitate operation of lockboxes that are mounted in awkward or poorly lit locations; limit lockbox accesses to preselected agents, agencies or boards; and record diagnostic information with each operation of a lockbox or key.
Inventors
- 👤 Wayne F. Larson
- 👤 Walter G. Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:43
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00571; G07C1/00; G07C1/32; G07C9/00309; G07C9/00817; G07C9/00857; G07C9/00896; G07C9/20; G07C9/21; G07C9/215; G07C9/27; E; E05; E05B; E05B19/00; E05B19/0005; E05B47/00; E05B2047/0048; E05B2047/005; E05B2047/0053; G07C2009/00753; G07C2009/00769; G07C2009/00825; G07C2009/00865; G07C2209/00; G07C2209/08; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5031
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
93 words
A lockbox comprising: a controlled-access compartment; receiving means for receiving data from a key; processing means for processing data received from the key and for allowing access to the lockbox compartment upon receipt of certain data from the key; fastening means for releasably fastening the lockbox to a fixed object, the fastening means being operable to release the lockbox from the fixed object upon receipt of a release command; and disable means for denying access to the lockbox compartment after receipt of the release command until after receipt of a lockbox reenable command.
Claim 2
Dependent Claim
93 words
A lockbox comprising: a controlled-access compartment; receiving means for receiving data from a key; processing means for processing data received from the key and for allowing access to the lockbox compartment upon receipt of certain data from the key; fastening means for releasably fastening the lockbox to a fixed object, the fastening means being operable to release the lockbox from the fixed object upon receipt of a release command; and disable means for denying access to the lockbox compartment after receipt of the release command until after receipt of a lockbox reenable command.
Claim 3
Dependent Claim
89 words
The lockbox of claim 1 in which: the receiving means receives data signals transmitted from an electronic key carried by an agent; the fastening means is operable to release the lockbox from the fixed object upon receipt of an electronic release command; and the disable means denies agents access to the compartment means after receipt of the electronic release command until after receipt of an electronic lockbox reenable command; and in which the lockbox further comprises electronic memory means for recording information relating to accesses of the lockbox compartment.
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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) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |