US3941468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identification structure, means for, and method of production
Assignee: Marlin and Company Systems Engineers Inc
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Filing: 1973-09-18
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Granted: 1976-03-02
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Expires: 1993-09-18
Abstract
Abstract A self-destructing identification card including electrostatically deposited identification data sandwiched between two halves of a fold-over plastic card, the two halves of which are cohered to each other by a cold solvent cement, and the method of and apparatus for manufacturing the card including a television camera for taking a picture to be imprinted on the card and a cathode ray tube for providing a negative image on a freeze frame basis for imprinting on a sensitized portion of the identification card during manufacture thereof.
Inventors
- 👤 Thomas J. McVittie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:07
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0525; G03G15/00; G03G15/22; G03G15/221; G03G5/10; G03G9/00; G03G9/08; G06; G06K; G06K1/00; G06K1/12; G06K1/128
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
140 words
Structure for producing identification cards or the like having electrostatically deposited images thereon including means for receiving an identification card and for rotating the card in a vertically oriented circle, means operably associated with the means for receiving and rotating the card for electrostatically charging the card adjacent the top of the vertically oriented circle, means for producing an electrostatic image on the charged card, means carrying an image-setting solution including particles therein having an affinity for the charged card positioned to receive the charged card having the electrostatic image thereon at the bottom of the vertically oriented circle through which the card is moved, means for passing image-setting solution over the card at the lowermost portion of the circle and means for subsequently drying the card on movement of the card toward the position in which it was received.
Claim 2
Dependent Claim
140 words
Structure for producing identification cards or the like having electrostatically deposited images thereon including means for receiving an identification card and for rotating the card in a vertically oriented circle, means operably associated with the means for receiving and rotating the card for electrostatically charging the card adjacent the top of the vertically oriented circle, means for producing an electrostatic image on the charged card, means carrying an image-setting solution including particles therein having an affinity for the charged card positioned to receive the charged card having the electrostatic image thereon at the bottom of the vertically oriented circle through which the card is moved, means for passing image-setting solution over the card at the lowermost portion of the circle and means for subsequently drying the card on movement of the card toward the position in which it was received.
Claim 3
Dependent Claim
75 words
Structure as set forth in claim 1 wherein the means for producing an electrostatic image on the card comprises a camera lens and shutter a television camera for taking a picture of the image, and a cathode ray tube connected to the television camera for producing a negative light image on the cathode ray tube of the picture taken by the television camera and projecting it through the shutter and lens onto the charged card.
Claim 4
Dependent Claim
47 words
Structure as set forth in claim 2 and further including freeze frame structure connected to the television camera and cathode ray tube, and switch means operably associated with the freeze frame structure to hold a picture on the cathode ray tube on actuation of the switch means.
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) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |