Patent US3288628A successfully refreshed from Google Patents.
US3288628A
Expired / Lapsed
US
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Process for chemically watermarking paper and product thereof
Assignee: Olin Corp
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Filing: 1962-10-01
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Granted: 1966-11-29
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Expires: 1982-10-01
Abstract
No abstract record available.
Inventors
- 👤 Milton O Schur
- 👤 John H Goldberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:41
CPC Classifications
B; B41; B41M; B41M3/00; B41M3/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
THE PROCESS OF MARKETING PAPER SHEETS WITH A PERMANENT COLORLESS TRANSLUCENT DESIGN COMPRISING PRINTING ON PAPER SHEETS A LAYER OF LIQUID IN THE SHAPE OF THE SAID DESIGN, WHICH LAYER IS ADAPTED TO PENETRATE RAPIDLY THE WEB OF SAID SHEETS SUBSTANTIALLY WITHOUT LATERAL DIFFUSION BEYOND THE PERIPHERY OF THE SAID DESIGN, SAID LIQUID CON SISTING ESSENTIALLY OF 55 TO 90 PERCENT BY WEIGHT OF LIQUID ORGANIC VISCOUS ESTER HAVING A MOLECULAR WEIGHT IN THE RANGE OF ABOUT 300 TO 10,000 AND 10 45 PERCENT BY WEIGHT OF A MONOMERIC NON-VOLATILE LIQUID ORGANIC ESTER PLASTICIZER HAVING A MELTING POINT BELOW 45*C. AND A BOILING POINT OVER 250*C.
Claim 2
Dependent Claim
106 words
THE PROCESS OF MARKETING PAPER SHEETS WITH A PERMANENT COLORLESS TRANSLUCENT DESIGN COMPRISING PRINTING ON PAPER SHEETS A LAYER OF LIQUID IN THE SHAPE OF THE SAID DESIGN, WHICH LAYER IS ADAPTED TO PENETRATE RAPIDLY THE WEB OF SAID SHEETS SUBSTANTIALLY WITHOUT LATERAL DIFFUSION BEYOND THE PERIPHERY OF THE SAID DESIGN, SAID LIQUID CON SISTING ESSENTIALLY OF 55 TO 90 PERCENT BY WEIGHT OF LIQUID ORGANIC VISCOUS ESTER HAVING A MOLECULAR WEIGHT IN THE RANGE OF ABOUT 300 TO 10,000 AND 10 45 PERCENT BY WEIGHT OF A MONOMERIC NON-VOLATILE LIQUID ORGANIC ESTER PLASTICIZER HAVING A MELTING POINT BELOW 45*C. AND A BOILING POINT OVER 250*C.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |