Patent US3211268A successfully refreshed from Google Patents.
US3211268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for authenticating documents and performing vending functions
Assignee: Model Vending Controls Inc
•
Filing: 1962-08-17
•
Granted: 1965-10-12
•
Expires: 1982-08-17
Abstract
No abstract record available.
Inventors
- 👤 Ralph S Dills
- 👤 Earl D Lock
- 👤 James K Phares
- 👤 Lloyd H Schleede
- 👤 Glen R Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:55
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
137 words
IN AN APPARATUS FOR AUTHENTICATION OF DOCUMENTS, SLIDE MEANS FOR MOVING THE DOCUMENT TO AN "IN" AND "OUT" PORTION, MEANS FOR DIRECTING LIGHT TO SELECTED PORTIONS OF THE SURFACE OF THE DOCUMENT WHEN THE SLIDE MEANS IS IN THE "IN" POSITION, MEANS FOR SENSING THE LIGHT PASSING THROUGH THE SELECTED PORTIONS OF THE DOCUMENT AND PRODUCING SIGNALS WHICH ARE A FUNCTION OF THE SENSED LIGHT, AND CENSORATOR CIRCUIT MEANS ADPATED TO RECEIVE SAID SIGNALS AND COMPARE ANY NUMBER OF SAID SIGNALS WITH A SELECTED REFERENCE SIGNAL DETERMINED FROM THE DOCUMENT BEING TESTED TO PRODUCE AN OUTPUT ACCEPTANCE OR REJECTION SIGNAL WHICH IS A FUNCTION OF TE DIFFERENCES BETWEEN EACH SELECTED SIGNAL AND THE REFERENCE SIGNAL, THE OUTPUT SIGNAL BEING AN ACCEPTANCE SIGNAL IF IT IS WITHIN A PRESELECTED RANGE DETERMINED BY SIGNALS OBTAINED FROM A GENUINE DOCUMENT.
References Cited (Backward Citations)
US2037462A
Cited
US2950799A
Cited
US2731621A
Cited
GB859101A
Cited
US2957387A
Cited
US3092433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |