US3138792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supervisory system
Assignee: Honeywell Inc
•
Filing: 1960-05-26
•
Granted: 1964-06-23
•
Expires: 1980-05-26
Abstract
No abstract record available.
Inventors
- 👤 Felton S Jenkins
- 👤 Arlon D Kompelien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:04
CPC Classifications
G; G08; G08B; G08B29/00; G08B29/02; G08B29/06; G08B29/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
IN SECURITY APPARATUS, A DETECTOR CIRCUIT INCLUDING A PAIR OF WIRES AND A FIRST TERMINATION IMPEDANCE, A SECOND CIRCUIT INCLUDING A PAIR OF WIRES AND A SECOND TERMINATION IMPEDANCE OF EQUAL VALUE TO SAID FIRST TERMINATION IMPEDANCE, A SUPERVISORY STATION, MEANS INCLUDING A PAIR OF SWITCHES OPERATED BY MOTOR DRIVEN CAMS FOR ALTERNATELY CONNECTING SAID DETECTOR CIRCUIT AND SAID SECOND CIRCUIT TO SAID SUPERVISORY STATION, A SOURCE OF POWER, MEANS CONNECTING SAID SOURCE TO SAID SUPERVISORY STATION TO PROVIDE A CONSTANT LEVEL OF CURRENT FLOW THROUGH SAID STATION AND THROUGH EITHER SAID DETECTOR CIRCUIT OR SAID SECOND CIRCUIT, ALARM MEANS CONNECTED IN SERIES WITH SAID STATION,
References Cited (Backward Citations)
US642362A
Cited
US791961A
Cited
US2679635A
Cited
US2707275A
Cited
US2713157A
Cited
US2655646A
Cited
US2819410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |