Patent US3588866A successfully refreshed from Google Patents.
US3588866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Security montioring system with tamperproof cabinet
Assignee: TELEPROMPTER CORP
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Filing: 1969-04-01
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Granted: 1971-06-28
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Expires: 1989-04-01
Abstract
Abstract A SIGNALLING SYSTEM COMPRISING REMOTE AND LOCAL INDICATORS. THE REMOTE INDICATOR BEING ACTUABLE IMMEDIATELY UPON THE UNAUTHORIZED TAMPERING WITH THE COVER OF THE ALARM CABINET. THE LOCAL INDICATOR BEING ACTUABLE UPON OPENING OF A MONITORING SWITCH (ATTACHED TO DOOR) WHILE THE REMOTE INDICATOR IS DELAYED, ALLOWING TIME FOR AN AUTHORIZED PERSON TO RESET THE SYSTEM BEFORE THE REMOTE SIGNAL IS GIVEN. AN AUTOMATIC TELEPHONE TRANSMITTER MAY BE EMPLOYED TO TRANSMIT A SIGNAL OR MESSAGE TO A REMOTE STATION.
Inventors
- 👤 Hubert J Schlafly Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:35
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/04; H04M11/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |