US2755202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized coloring compositions and methods of making and using same
Assignee: EIDP Inc
•
Filing: 1954-09-17
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Granted: 1956-07-17
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Expires: 1974-09-17
Abstract
No abstract record available.
Inventors
- 👤 Baion Walter Jean
- 👤 Stallmann Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:50
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/008; B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/136; B41M5/1366; Y; Y10; Y10S; Y10S101/00; Y10S101/29; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249959
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A COLORING AGENT FOR PRODUCING A TRIARYLMETHANE COLORING MATTER IN SITU UPON THE SURFACE OF A STRATUM, SAID COLORING AGENT COMPRISING AT LEAST ONE LEUCO COMPOUND SELECTED FROM THE GROUP CONSISTING OF SPIRIT SOLUBLE, POLYAMINO-TRIARYLMETHANES OF THE FORMULA
Claim 2
Dependent Claim
38 words
A COLORING AGENT FOR PRODUCING A TRIARYLMETHANE COLORING MATTER IN SITU UPON THE SURFACE OF A STRATUM, SAID COLORING AGENT COMPRISING AT LEAST ONE LEUCO COMPOUND SELECTED FROM THE GROUP CONSISTING OF SPIRIT SOLUBLE, POLYAMINO-TRIARYLMETHANES OF THE FORMULA
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) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |