Patent US2826511A successfully refreshed from Google Patents.
US2826511A
Expired / Lapsed
US
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Method and product of water writing and marking
Assignee: Individual
•
Filing: 1954-08-10
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Granted: 1958-03-11
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Expires: 1974-08-10
Abstract
No abstract record available.
Inventors
- 👤 Messinger Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:34
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/26; B41M1/36; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31536
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A PROCESS OF WRITING AND DRAWING WITH A STYLUS, PEN OR ANY OTHER IMPLEMENT UTILIZING WATER WHEREBY THE AREA OF CONTACT BETWEEN THE STYLUS CARRYING THE WATER AND THE RECEIVING SURFACE TURNS TO A DARK COLOR SIMULATING INK, COMPRISING SUCCESSIVELY TREATING THE PAPER WITH AT LEAST TWO LAYERS OF WATER SOLUBLE CHEMICAL COMPOSITIONS, ONE OF SAID CHEMICAL COMPOSITIONS BEING SOLUBLE IN A SOLVENT OTHER THAN WATER IN WHICH THE OTHER OF SAID CHEMICAL COMPOSITIONS IS INSOLUBLE, SAID CHEMICAL COMPOSITIONS REACTING WITH EACH OTGHER UPON THE APPLICATION OF WATER TO THE RECEIVING SURFACE TO PRODUCE A HIGHLY COLORED PRODUCT SIMULATING INK, WHEREIN ONE OF SAID LAYERS IS APPLIED BY TREATING THE RECEIVING SURFACE WITH AQUEOUS FERRIC AMMONIUM SULFATE AND THE OTHER OF SAID LAYERS IS APPLIED BY TREATING SAID SURFACE WITH A SOLUTION OF ANTIPYRINE IN ISOPYROPYL ALCOHOL.
Claim 2
Dependent Claim
137 words
A PROCESS OF WRITING AND DRAWING WITH A STYLUS, PEN OR ANY OTHER IMPLEMENT UTILIZING WATER WHEREBY THE AREA OF CONTACT BETWEEN THE STYLUS CARRYING THE WATER AND THE RECEIVING SURFACE TURNS TO A DARK COLOR SIMULATING INK, COMPRISING SUCCESSIVELY TREATING THE PAPER WITH AT LEAST TWO LAYERS OF WATER SOLUBLE CHEMICAL COMPOSITIONS, ONE OF SAID CHEMICAL COMPOSITIONS BEING SOLUBLE IN A SOLVENT OTHER THAN WATER IN WHICH THE OTHER OF SAID CHEMICAL COMPOSITIONS IS INSOLUBLE, SAID CHEMICAL COMPOSITIONS REACTING WITH EACH OTGHER UPON THE APPLICATION OF WATER TO THE RECEIVING SURFACE TO PRODUCE A HIGHLY COLORED PRODUCT SIMULATING INK, WHEREIN ONE OF SAID LAYERS IS APPLIED BY TREATING THE RECEIVING SURFACE WITH AQUEOUS FERRIC AMMONIUM SULFATE AND THE OTHER OF SAID LAYERS IS APPLIED BY TREATING SAID SURFACE WITH A SOLUTION OF ANTIPYRINE IN ISOPYROPYL ALCOHOL.
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) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |