Patent US3132039A successfully refreshed from Google Patents.
US3132039A
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Heat responsive recording sheet
Assignee: Monsanto Chemicals Ltd
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Filing: 1960-12-22
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Granted: 1964-05-05
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Expires: 1980-12-22
Abstract
No abstract record available.
Inventors
- 👤 Bernard S Wildi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:39
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982; Y10T428/31986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AS AN ARTICLE OF MANUFACTURE, WEB TREATED WITH A REACTION PRODUCT MADE BY REACTING A COMPOUND SELECTED FROM THE CLASS CONSISTING OF AMMONIA AND LOWER ALKYL MONOHYDROXY ALCOHOLS WITH A NITRILE SELECTED FROM THE CLASS CONSISTING OF SUCCINONITRILE, PHTHALONITRILE AND PYROMELLITONITRILE AT A TEMPERATURE SUFFICIENTLY HIGH TO CAUSE SAID COMPOUND AND SAID NITRILE TO REACT IN MOLAR RATIO OF ABOUT 2:1 OF COMPOUND TO NITRILE WHEN PYROMELLITONITRILE IS THE NITRILE AND ABOUT 1:1 WHEN ANOTHER OF SAID NITRILES IS THE NITRILE, BUT AN INSUFFICIENTLY HIGH TEMPERATURE TO CAUSE SUBSTANTIAL DECOMPOSITION OF SAID REACTION PRODUCT AS INDICATED BY A COLOR CHANGE THEREOF.
Claim 2
Dependent Claim
101 words
AS AN ARTICLE OF MANUFACTURE, WEB TREATED WITH A REACTION PRODUCT MADE BY REACTING A COMPOUND SELECTED FROM THE CLASS CONSISTING OF AMMONIA AND LOWER ALKYL MONOHYDROXY ALCOHOLS WITH A NITRILE SELECTED FROM THE CLASS CONSISTING OF SUCCINONITRILE, PHTHALONITRILE AND PYROMELLITONITRILE AT A TEMPERATURE SUFFICIENTLY HIGH TO CAUSE SAID COMPOUND AND SAID NITRILE TO REACT IN MOLAR RATIO OF ABOUT 2:1 OF COMPOUND TO NITRILE WHEN PYROMELLITONITRILE IS THE NITRILE AND ABOUT 1:1 WHEN ANOTHER OF SAID NITRILES IS THE NITRILE, BUT AN INSUFFICIENTLY HIGH TEMPERATURE TO CAUSE SUBSTANTIAL DECOMPOSITION OF SAID REACTION PRODUCT AS INDICATED BY A COLOR CHANGE THEREOF.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |