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Removable scratch-off coating

Patent
US-5925440-A
Inventor

FARAG ASHRAF T (US)

CARIDES JAMES J (US)

Assignee
DITTLER BROTHERS INC (US)
Country
United States
Dates
  • Priority:
    1997/06/24
  • Grant:
    1999/07/20
Description
This web page summarizes information in PubChem about patent US-5925440-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.

1 Abstract

A card is disclosed that incorporates a removable scratch-off coating to hide printed symbols. The card is constructed so that the scratch-off coating is selectively retained by the card, in the form of symbols, or as a background for symbols, when the scratch-off coating is removed. The selective retention of scratch-off coating material to the card is accomplished by incorporating into the card, between the substrate and the scratch-off coating, a clear release coat patterned to form symbols. When the scratch-off coating material is applied to the card during construction, it either adheres directly to the substrate in the form of symbols, or it adheres to the substrate in the background for the symbols, depending on how the release coat is applied. When a player rubs the scratch-off coating material, it releases from the release coat and remains adhered to the substrate to create either symbols or the background for symbols.

2 Full Text

3 Important Dates

3.1 Priority Date

1997/06/24

3.2 Filing Date

1997/06/24

3.3 Publication Date

1999/07/20

3.4 Grant Date

1999/07/20

4 Inventor

FARAG ASHRAF T (US)

CARIDES JAMES J (US)

5 Assignee

DITTLER BROTHERS INC (US)

6 Country

United States

7 Patent Family

8 Classification

8.1 IPC

A63F3/06 (inventive)

B41M7/00 (inventive)

B41M3/00 (inventive)

B41M5/24 (inventive)

8.2 CPC

Y10T428/24901

Y10T428/254

A63F3/0665 (inventive, first)

B41M5/24 (inventive)

B41M3/005 (inventive)

Y10T428/24777

Y10T428/24802

Y10T428/24793

Y10T428/2991

Y10T428/24917

Y10T428/24934

B41M7/0027 (inventive)

Y10T428/25

Y10T428/31678

9 Citations

10 Cited By

11 Similar Patents

12 Information Sources

  1. Google Patents
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  2. PubChem
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