US3978320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data control devices
Assignee: Individual
•
Filing: 1975-02-20
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Granted: 1976-08-31
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Expires: 1995-02-20
Abstract
Abstract A portable plastic card is assigned to carry relevant inventory and other data for each of a given number of items. The card both stores and displays sufficient data to make it useful as an inventory control tool. The visual data is a persistent electrochromic display that shows select portions of the data stored in the magnetic track. Two edges of the card are tapered to prevent their improper introduction to a card reader. A diagrammatic drawing shows the preferred use of the card in a slip-issuing mode.
Inventors
- 👤 W. Neil McBride, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:11
CPC Classifications
G; G07; G07F; G07F7/00; G06; G06K; G06K7/00; G06K7/08; G06K7/082; G06K7/083; G06K7/084
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
91 words
A portable document used to improve the speed and accuracy of data capture when presented to a reading device, comprising a plasticized generally rectangular support means provided with a pair of tapered longitudinally extending edge portions and a first pair of transversely extending edge portions, said edge portions defining therebetween more than one indicia receiving means and at least one indicia displaying means, wherein said indicia receiving means include a magnetic track and a persistent electrochromic display portion, and said display means include the same beforein mentioned persistent electrochromic display portion.
Claim 2
Dependent Claim
91 words
A portable document used to improve the speed and accuracy of data capture when presented to a reading device, comprising a plasticized generally rectangular support means provided with a pair of tapered longitudinally extending edge portions and a first pair of transversely extending edge portions, said edge portions defining therebetween more than one indicia receiving means and at least one indicia displaying means, wherein said indicia receiving means include a magnetic track and a persistent electrochromic display portion, and said display means include the same beforein mentioned persistent electrochromic display portion.
Claim 3
Dependent Claim
45 words
A document according to claim 1 whereby the persistent electrochromic display includes means to serve a valid function in data control when used in a query-response application, where said application would not require the physical manipulation of the document or electronic manipulation of data therein.
Claim 4
Dependent Claim
17 words
A document according to claim 1, wherein said document contains means for manual single input variable entry.
Claim 5
Dependent Claim
33 words
A document according to claim 1 wherein said persistent electrochromic display is connected to segment leads positioned on one surface of the said document to respond to corresponding leads in a driving circuitry.
Claim 6
Dependent Claim
25 words
The document recited in claim 1 wherein said document has spaced segment leads of the sides thereof opposite said side having said indicia-receiving means thereon.
Claim 7
Dependent Claim
25 words
The document recited in claim 1 wherein said magnetic track is disposed on the opposite side of said document from said persistent electrochromic display portion.
Claim 8
Dependent Claim
81 words
A portable document used to improve the speed and accuracy of data capture when presented to a reading device comprising, a plasticized, generally rectangular support means provided with a pair of longitudinally-extending edge portions and a first pair of transversely extending edge portions, said edge portions defining therebetween more than one indicia, displaying means wherein said indicia-receiving means include a magnetic track and a persistent electrochromic display portion, and said display means include the same beforein mentioned persistent electrochromic display portion.
Claim 9
Dependent Claim
81 words
A portable document used to improve the speed and accuracy of data capture when presented to a reading device comprising, a plasticized, generally rectangular support means provided with a pair of longitudinally-extending edge portions and a first pair of transversely extending edge portions, said edge portions defining therebetween more than one indicia, displaying means wherein said indicia-receiving means include a magnetic track and a persistent electrochromic display portion, and said display means include the same beforein mentioned persistent electrochromic display portion.
Claim 10
Dependent Claim
25 words
The document according to claim 7 wherein said document has spaced segment leads on the sides thereof opposite said side having said indicia-receiving means thereon.
Claim 11
Dependent Claim
25 words
The document recited in claim 7 wherein said magnetic track is disposed on the opposite side of said document from said persistent electrochromic display portion.
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) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |