US3024173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic recording medium
Assignee: Hogan Faximile Corp
•
Filing: 1960-01-26
•
Granted: 1962-03-06
•
Expires: 1980-01-26
Abstract
No abstract record available.
Inventors
- 👤 Mandel Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:24
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/23; B; B41; B41M; B41M5/00; B41M5/20; B41M5/205
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
20 words
AN ELECTROLYTIC RECORDING MEDIUM COMPRISING AN IMPREGNATED SHEET CONTAINING AS A MARKING COMPOUND PROTOCATECHUIC ACID IN AN ELECTROLYTICALLY CONDUCTING SOLUTION.
Claim 2
Dependent Claim
20 words
AN ELECTROLYTIC RECORDING MEDIUM COMPRISING AN IMPREGNATED SHEET CONTAINING AS A MARKING COMPOUND PROTOCATECHUIC ACID IN AN ELECTROLYTICALLY CONDUCTING SOLUTION.
Claim 3
Dependent Claim
71 words
AN ELECTROLYTIC RECORDING MEDIUM ACCORDING TO CLAIM 1 IN WHICH THE ELECTROLYTE IS SELECTED FROM THE GROUP CONSISTING OF BROMIDES AND CHLORIDES OF SODIUM, CALCIUM, POTASSIUM, LITHIUM, MAGNESIUM, RUBIDIUM, AND CESIUM, AND INCORPORATED AN ACID SOLUTION CONTAINING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULFURIC, NITRIC, HYDROCHLORIC, AND CITRIC AND ITS SALTS AND A STABILIZER SELECTED FROM THE GROUP CONSISTING OF THIOUREA, ALKYL DERIVATIVES OF THIOUREA, AND DITHIOUBIURET.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |