US3684549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive transfer coating
Assignee: Individual
•
Filing: 1970-10-12
•
Granted: 1972-08-15
•
Expires: 1990-10-12
Abstract
Abstract THE INVENTION PROVIDES A RECORD MATERIAL SENSITIZED WITH ACIDIC ELECTRON ACCEPTORS AND A DYE TRANSFER LAYER COMPRISING A LEUCOAURAMINE DYE HOMOGENEOUSLY DISTRIBUTED THROUGHOUT AN INERT HOT MELT LAYER PLASTICIZED SUCH THAT THE DYE CAN BE EASILY TRANSFERRED TO THE ACIDIC ELECTRON ACCEPTOR LAYER FOR MARKING WITHOUT TRANSFER OF THE HOT MELT.
Inventors
- 👤 Joseph L Shank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |