US4849736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic marker having a rectangular configuration for electronic article surveillance
Assignee: Pitney Bowes Inc
•
Filing: 1987-12-11
•
Granted: 1989-07-18
•
Expires: 2007-12-11
Abstract
Abstract A magnetic marker is disclosed having characteristics that lend the marker to being useful in the field of theft detection using electronic article surveillance techniques. The marker has a magnetic member that is formed in a rectangular configuration. With such configuration one is able to fabricate magnetic markers of relatively small sizes.
Inventors
- 👤 Robert A. Cordery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:05
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/22; G08B13/24; G08B13/2402; G08B13/2405; G08B13/2408; G08B13/2428; G08B13/2437; G08B13/244; G08B13/2442
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
66 words
A magnetic marker for use in an article surveillance system comprising: a soft magnetic member having a rectangular frame configuration with linear sides, said magnetic member being sandwiched between the faces of two dielectric sheets, each of the sheets having planar dimensions greater than the dimensions of said magnetic member, and said sheets being joined together at the ends thereof to hold said magnetic member therebetween.
Claim 2
Dependent Claim
66 words
A magnetic marker for use in an article surveillance system comprising: a soft magnetic member having a rectangular frame configuration with linear sides, said magnetic member being sandwiched between the faces of two dielectric sheets, each of the sheets having planar dimensions greater than the dimensions of said magnetic member, and said sheets being joined together at the ends thereof to hold said magnetic member therebetween.
Claim 3
Dependent Claim
14 words
The magnetic marker of claim 1 wherein said rectangular frame configuration is generally square.
Claim 4
Dependent Claim
30 words
The magnetic marker of claim 1 wherein said rectangular frame soft magnetic member has one pair of opposite sides approximately one third larger than the other pair of opposite sides.
Claim 5
Dependent Claim
30 words
The magnetic marker of claim 1 wherein each side of said rectangular frame configuration has a length between 0.8 and 1.2 inches, and a width of up to 0.200 inches.
Claim 6
Dependent Claim
13 words
The magnetic marker of claim 1 wherein said soft magnetic member is monolithic.
Claim 7
Dependent Claim
23 words
The magnetic marker of claim 1 wherein said soft magnetic member is formed from four strips of magnetic material attached to one another.
Claim 8
Dependent Claim
12 words
The magnetic marker of claim 6 wherein said magnetic material is permalloy.
Claim 9
Dependent Claim
13 words
The magnetic marker of claim 6 wherein said magnetic material is amorphous metal.
Claim 10
Dependent Claim
42 words
A magnetic marker for use in an article surveillance system comprising: a soft magnetic member having a rectangular frame configuration with linear sides, and a sheet having adhesive on one planar surface thereof, said magnetic member being in contact with said adhesive.
Claim 11
Dependent Claim
42 words
A magnetic marker for use in an article surveillance system comprising: a soft magnetic member having a rectangular frame configuration with linear sides, and a sheet having adhesive on one planar surface thereof, said magnetic member being in contact with said adhesive.
Claim 12
Dependent Claim
14 words
The magnetic marker of claim 9 wherein said rectangular frame configuration is generally square.
Claim 13
Dependent Claim
30 words
The magnetic marker of claim 9 wherein said rectangular frame soft magnetic member has one pair of opposite sides approximately one third larger than the other pair of opposite sides.
Claim 14
Dependent Claim
29 words
The magnetic marker of claim 9 wherein each side of said rectangular configuration has a length between 0.8 and 1.2 inches, and a width of up to 0.200 inches.
Claim 15
Dependent Claim
14 words
The magnetic marker of claim 9 wherein said rectangular soft magnetic member is monolithic.
Claim 16
Dependent Claim
85 words
A composite web for use in an article surveillance system comprising: a plurality of soft magnetic members, said soft magnetic members being in rectangular frame form with linear sides and sandwiched between the faces of two dielectric sheets, each of the sheets having planar dimensions greater than the dimensions of said soft magnetic members, said sheets being joined together to sandwich said soft magnetic members therebetween so as to form labels, said labels being releaseably attached to a carrier web to form a composite web.
Claim 17
Dependent Claim
85 words
A composite web for use in an article surveillance system comprising: a plurality of soft magnetic members, said soft magnetic members being in rectangular frame form with linear sides and sandwiched between the faces of two dielectric sheets, each of the sheets having planar dimensions greater than the dimensions of said soft magnetic members, said sheets being joined together to sandwich said soft magnetic members therebetween so as to form labels, said labels being releaseably attached to a carrier web to form a composite web.
Claim 18
Dependent Claim
31 words
The composite web of claim 14 wherein each side of said rectangular frame configuration has a length between 0.8 and 1.2 inches, and a width of less than 0.200 inches inclusive.
Claim 19
Dependent Claim
13 words
The composite web of claim 14 wherein said carrier web has cuts therein.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |