US4175774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-copying printed document and method of printing same
Assignee: BEDINGHAUS BUSINESS COMMUNICATIONS Inc A CORP OF DELAWARE
•
Filing: 1978-03-23
•
Granted: 1979-11-27
•
Expires: 1998-03-23
Abstract
Abstract A document with a background printed thereon which includes a first portion formed of small dots and a second portion formed of larger dots. The larger dots are of a size which is reproduced by a copying machine. The small dots are of a size which is not reproduced by the copying machine. When a copy is made, only the larger dots reproduce so that the copy is readily distinguishable from the original.
Inventors
- 👤 Gerald A. Tonges
- 👤 Eugene L. Elmlinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:47
CPC Classifications
B; B41; B41M; B41M3/00; B41M3/14; B41M3/146; B42; B42D; B42D25/00; B42D25/20; B42D25/29; B42D25/30; B42D25/333; G; G03; G03C; G03C5/00; G03C5/08; G03G; G03G21/00; G03G21/04; G03G21/043; G07; G07D; G07D7/00; G07D7/003; Y; Y10; Y10S; Y10S283/00; Y10S283/902
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
66 words
A document including a sheet and a background printed on the sheet, the background including a first portion formed of small dots and a second portion formed of larger dots, the dots being of a single color, the larger dots being of a size which is reproduced by a copying machine, the small dots being of a size which is not reproduced by the copying machine.
Claim 2
Dependent Claim
66 words
A document including a sheet and a background printed on the sheet, the background including a first portion formed of small dots and a second portion formed of larger dots, the dots being of a single color, the larger dots being of a size which is reproduced by a copying machine, the small dots being of a size which is not reproduced by the copying machine.
Claim 3
Dependent Claim
46 words
A document as in claim 1 in which the portions of the background are so arranged that when a copy of the document is made in which the larger dots are reproduced but the small dots are not reproduced, indicia is formed to void the document.
Claim 4
Independent Claim
82 words
A method of printing a document which includes printing a first portion of a background of the document in small dots which will not reproduce on a copying machine and printing a second portion of the background in larger dots which will reproduce on the copying machine, the dots being of a single color, whereby, when a copy of the document is made, only the second portion of the background is reproduced, and the first portion of the background is not reproduced.
Claim 5
Independent Claim
82 words
A method of printing a document which includes printing a first portion of a background of the document in small dots which will not reproduce on a copying machine and printing a second portion of the background in larger dots which will reproduce on the copying machine, the dots being of a single color, whereby, when a copy of the document is made, only the second portion of the background is reproduced, and the first portion of the background is not reproduced.
References Cited (Backward Citations)
US1675769A
Cited
US1692405A
Cited
US3088841A
Cited
US3282720A
Cited
US3713861A
Cited
US3852088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |