US3563782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing surface and ink composition for marking thereon
Assignee: Gamco Inc
•
Filing: 1969-07-31
•
Granted: 1971-02-16
•
Expires: 1989-07-31
Abstract
Abstract A PIGMENTED SHEET OF POLYETHYLENE PLASTIC HAVING A DENSITY IN THE RANGE OF ABOUT 0.95 TO ABOUT 0.96, HAVING A UNIFORM, SUBSTANTIALLY SMOOTH, NON-GLOSSY SURFACE, AND HAVING MINUTE INDENTATIONS IN THE SURFACE CAUSING THE SURFACE TO RECEIVE AND RETAIN AN INK MARKING COMPOSED OF A PLURALITY OF ESSENTIALLY DRY DYE PARTICLES WHICH ADHERE TO THE SURFACE OF THE SHEET BUT WHICH MAY BE READILY REMOVED THEREFROM BY LIGHT MECHANICAL ABRASION.
Inventors
- 👤 Isaiah U Liberman
- 👤 Jerome A Woolf
- 👤 Raymond D Atchley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:18
CPC Classifications
B; B44; B44D; B44D3/00; B44D3/18; B43; B43L; B43L1/00; B43L1/04; B43L1/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24802; Y10T428/25; Y10T428/254; Y10T428/28
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |