Patent US6231082B1 successfully refreshed from Google Patents.
US6231082B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamper-evident form for securely carrying information
Assignee: Documotion Research Inc
•
Filing: 2000-02-16
•
Granted: 2001-05-15
•
Expires: 2020-02-16
Abstract
Abstract A tamper-evident form for securely carrying information includes a scrambling pattern ( 4 ) which underlies the printed information such that the printed information cannot be read. Separation of the printed information and scrambling pattern, or other disabling of the scrambling pattern, is tamper-evident and renders the information readable. In preferred embodiments the information is printed on a lamina ( 6 ) which overlies the scrambling pattern ( 4 ). The information can be printed by conventional printers and no post-processing of the form is required to render the information secure.
Inventors
- 👤 Joel Bryan Van Boom
- 👤 Chuck Casagrande
- 👤 Bernard Willem Scheggetman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:58
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/30; B42D15/00; B42D15/02; B42D15/025; B41; B41J; B41J29/00; B41J29/38; B41J29/393; B41J3/00; B41J3/44; B41J3/50; B41J3/51; B41M; B41M3/00; B41M3/14; G; G03; G03G; G03G21/00; G03G21/04; G03G21/043; G09; G09F; G09F3/00; G09F3/02; G09F3/0291; G09F3/0294; B41M5/00; B41M5/26; B41M5/28
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
118 words
A method of rendering printed information secure, said method comprising the steps of: bonding together an upper transparent lamina having an exposed upper surface and a lower non-transparent lamina bearing scrambling means which are visible from above through the upper transparent lamina, the scrambling means being selected such that information printed on the exposed upper surface of the upper transparent lamina cannot be read while the scrambling means is beneath the printed information; printing information on the exposed upper surface of the upper transparent lamina; and wherein the printed information becomes readable when the bond between the upper transparent lamina and lower non-transparent lamina is broken and the upper transparent lamina and lower non-transparent lamina are physically separated.
Claim 2
Independent Claim
118 words
A method of rendering printed information secure, said method comprising the steps of: bonding together an upper transparent lamina having an exposed upper surface and a lower non-transparent lamina bearing scrambling means which are visible from above through the upper transparent lamina, the scrambling means being selected such that information printed on the exposed upper surface of the upper transparent lamina cannot be read while the scrambling means is beneath the printed information; printing information on the exposed upper surface of the upper transparent lamina; and wherein the printed information becomes readable when the bond between the upper transparent lamina and lower non-transparent lamina is broken and the upper transparent lamina and lower non-transparent lamina are physically separated.
Claim 3
Dependent Claim
39 words
The method of claim 1 wherein physical separation of the upper transparent lamina and lower non-transparent lamina causes an indication that the security of information printed on the exposed upper surface of the upper transparent lamina has been breached.
Claim 4
Dependent Claim
44 words
The method of claim 1 further comprising the step of scoring or slitting the upper transparent lamina such that an attempt to remove the printed information from the upper surface of the upper transparent lamina causes the upper transparent lamina to tear or rupture.
Claim 5
Dependent Claim
51 words
The method of claim 1 further comprising the step of die-cutting a portion of the lower non-transparent lamina such that the die-cut portion of the lower non-transparent lamina can be removed, thereby breaking the bond between the upper transparent lamina and lower non-transparent lamina so that the printed information becomes readable.
Claim 6
Dependent Claim
51 words
The method of claim 1 further comprising the step of die-cutting a portion of the upper transparent lamina such that the die-cut portion of the upper transparent lamina can be removed, thereby breaking the bond between the upper transparent lamina and lower non-transparent lamina so that the printed information becomes readable.
Claim 7
Independent Claim
119 words
A method of rendering printed information secure, said method comprising the steps of: bonding together an upper transparent lamina having an exposed upper surface and a lower non-transparent lamina bearing a scrambling pattern which is visible from above through the upper transparent lamina, the scrambling pattern being selected such that information printed on the exposed upper surface of the upper transparent lamina cannot be read whilst the scrambling pattern is beneath the printed information; printing information on the exposed upper surface of the upper transparent lamina; and wherein the printed information becomes readable when the bond between the upper transparent lamina and lower non-transparent lamina is broken and the upper transparent lamina and lower non-transparent lamina are physically separated.
Claim 8
Independent Claim
119 words
A method of rendering printed information secure, said method comprising the steps of: bonding together an upper transparent lamina having an exposed upper surface and a lower non-transparent lamina bearing a scrambling pattern which is visible from above through the upper transparent lamina, the scrambling pattern being selected such that information printed on the exposed upper surface of the upper transparent lamina cannot be read whilst the scrambling pattern is beneath the printed information; printing information on the exposed upper surface of the upper transparent lamina; and wherein the printed information becomes readable when the bond between the upper transparent lamina and lower non-transparent lamina is broken and the upper transparent lamina and lower non-transparent lamina are physically separated.
Claim 9
Dependent Claim
39 words
The method of claim 6 wherein physical separation of the upper transparent lamina and lower non-transparent lamina causes an indication that the security of information printed on the exposed upper surface of the upper transparent lamina has been breached.
Claim 10
Dependent Claim
44 words
The method of claim 6 further comprising the step of scoring or slitting the upper transparent lamina such that an attempt to remove the printed information from the upper surface of the upper transparent lamina causes the upper transparent lamina to tear or rupture.
Claim 11
Dependent Claim
51 words
The method of claim 6 further comprising the step of die-cutting a portion of the lower non-transparent lamina such that the die-cut portion of the lower non-transparent lamina can be removed, thereby breaking the bond between the upper transparent lamina and lower non-transparent lamina so that the printed information becomes readable.
Claim 12
Dependent Claim
51 words
The method of claim 6 further comprising the step of die-cutting a portion of the upper transparent lamina such that the die-cut portion of the upper transparent lamina can be removed, thereby breaking the bond between the upper transparent lamina and lower non-transparent lamina so that the printed information becomes readable.
References Cited (Backward Citations)
US1996288A
Cited
GB851749A
Cited
US3001886A
Cited
US2952080A
Cited
GB894081A
Cited
FR1259277A
Cited
US3279826A
Cited
US3315386A
Cited
GB1235694A
Cited
US3520757A
Cited
US3675948A
Cited
US4109047A
Cited
GB1590274A
Cited
US4174857A
Cited
US4299637A
Cited
US4379573A
Cited
US4551373A
Cited
US4790565A
Cited
US4668597A
Cited
US4778153A
Cited
EP0271673A1
Cited
US4889365A
Cited
US5253899A
Cited
WO1991018376A1
Cited
US5288977A
Cited
US5238272A
Cited
US5346258A
Cited
US5286061A
Cited
US5618112A
Cited
US5863075A
Cited
US5839763A
Cited
US5893587A
Cited
US6114077A
Cited
US6022051A
Cited
US6113150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-05-14 | 2004-11-13 | 2005-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-14 | 2008-11-13 | 2009-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-14 | 2012-11-13 | 2013-05-15 | $7700.00 | Window Closed / Lapsed |