US2864720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer sheet coated with a composition containing a salt and a hydrotrope
Assignee: Ditto Inc
•
Filing: 1954-10-29
•
Granted: 1958-12-16
•
Expires: 1974-10-29
Abstract
No abstract record available.
Inventors
- 👤 Richard G Maguire
- 👤 Glen W Hedrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:09
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/025; B41M5/0253; H; H10; H10W; H10W74/00; H10W74/10; H10W74/131; Y; Y10; Y10S; Y10S101/00; Y10S101/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A CARBON PAPER CONSISTING ESSENTIALLY OF A BASE SHEET HAVING A TRANSFER COATING THEREON CONSISTING ESSENTIALLY OF FROM 10 PERCENT TO 80 PERCENT BY WEIGHT OF A NICKEL SALT, ADAPTED TO REACT WITH RUBEANIC ACID, DISPERSED IN OLEAGINOUS AND WAXY MATERIAL CONTAINING FROM 2 TO 20 PERCENT BY WEIGHT OF A HYDROTROPIC ARYL SULPHONATE.
Claim 2
Dependent Claim
54 words
A CARBON PAPER CONSISTING ESSENTIALLY OF A BASE SHEET HAVING A TRANSFER COATING THEREON CONSISTING ESSENTIALLY OF FROM 10 PERCENT TO 80 PERCENT BY WEIGHT OF A NICKEL SALT, ADAPTED TO REACT WITH RUBEANIC ACID, DISPERSED IN OLEAGINOUS AND WAXY MATERIAL CONTAINING FROM 2 TO 20 PERCENT BY WEIGHT OF A HYDROTROPIC ARYL SULPHONATE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |