Patent
   D279872
Priority
Aug 22 1983
Filed
Aug 22 1983
Issued
Jul 30 1985
Expiry
Jul 30 1999
Assg.orig
Entity
unknown
18
6
n/a
The ornamental design for a photoelectric smoke detector, as shown and described.

FIG. 1 is a left side elevational view of a photoelectric smoke detector showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a side elevational view taken 90 degrees from FIG. 1;

FIG. 5 is a reduced bottom plan view thereof.

Thornton, Jr., Hugh P., Powers, Robert B.

Patent Priority Assignee Title
5751218, Jul 19 1996 Tyco Fire & Security GmbH Smoke detector housing for improved smoke collection
9647431, May 17 2011 Wall mounted personal cabinet for jewelry and other items
D293089, Feb 01 1985 DETECTION SYSTEMS, INC Smoke detector housing
D314719, Nov 21 1988 SCOTT TECHNOLOGIES, INC Heat and smoke detector
D332231, Oct 22 1990 Nittan Co., Ltd. Fire detector
D339756, Dec 19 1990 Nohmi Bosai Ltd. Smoke detector
D339998, Dec 19 1990 Nohmi Bosai Ltd. Smoke detector
D377460, Dec 22 1995 ADT Services AG Heat detector
D383407, Dec 22 1995 ADT Services AG Grille for a smoke detector
D388351, Dec 22 1995 ADT Services AG Smoke detector
D388352, Dec 22 1995 ADT Services AG Smoke detector
D392573, Dec 22 1995 Tyco Fire & Security GmbH Smoke detector
D716170, Aug 27 2012 CAVIUS APS Heat detector
D757585, Sep 05 2013 CAVIUS APS Smoke alarm
D758230, Sep 05 2013 CAVIUS APS Smoke alarm
D769756, Jan 30 2014 CAVIUS APS Heat detector
D879635, Sep 18 2017 CAVIUS APS Alarm
D899285, Oct 18 2019 SOTER TECHNOLOGIES, LLC Vape detector housing
Patent Priority Assignee Title
CH563044,
CH633122,
215040,
220662,
D276417, Sep 16 1982 FIRST NATIONAL BANK OF CHICAGO, THE Smoke detector
FR1490273,
/////////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 25 1983POWERS, ROBERT B AMERICAN DISTRICT TELEGRAPH COMPANY, A DE CORP ASSIGNMENT OF ASSIGNORS INTEREST 0041670553 pdf
Jul 27 1983THORNTON, HUGH P JR AMERICAN DISTRICT TELEGRAPH COMPANY, A DE CORP ASSIGNMENT OF ASSIGNORS INTEREST 0041670553 pdf
Aug 22 1983American District Telegraph Company(assignment on the face of the patent)
May 13 1986American District Telegraph CompanyADT, INC CHANGE OF NAME SEE DOCUMENT FOR DETAILS 0050770275 pdf
Feb 29 1988ADT, INC ADT SECURITY SYSTEMS, INC CHANGE OF NAME SEE DOCUMENT FOR DETAILS 0050910837 pdf
Dec 31 1988ADT DIVERSIFIED SERVICES, INC ADT SECURITY SYSTEMS, INC ASSIGNMENT OF ASSIGNORS INTEREST 0052080081 pdf
Jan 03 1989ADT SECURITY SYSTEMS, INC ADT DIVERSIFIED SERVICES, INC ,CHANGE OF NAME SEE DOCUMENT FOR DETAILS JANUARY 6, 1989 NEW JERSEY0050910824 pdf
May 31 1991ADT SECURITY SYSTEMS, INC SENTROL ACQUISITION CORPORATION A DELAWARE CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST 0059160045 pdf
Jan 03 1992SENTROL ACQUISITION CORP A CORP OF DELAWARE MERGED INTO SENTROL, INC A CORP OF OREGONMERGER SEE DOCUMENT FOR DETAILS EFFECTIVE ON 12 31 1991OR0060710296 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule