Patent US3221087A successfully refreshed from Google Patents.
US3221087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparing heat sensitive materials in improved physical form
Assignee: Monsanto Co
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Filing: 1962-03-19
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Granted: 1965-11-30
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Carl A Harman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:33
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/02; C07D417/10; B; B01; B01J; B01J2/00; B01J2/24; B29; B29B; B29B9/00; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/76; C07D277/80; C08; C08K; C08K5/00; C08K5/36; C08K5/45; C08K5/46; C08K5/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE PROCESS OF PREPARING NORMALLY SOLID MATERIALS THAT GRADUALLY DETERIORATE AT MELTING TEMPERATURE, IN IMPROVED PHYSICAL FORM, WHICH COMPRISES IN COMBINATION FORMING MOLTEN FILM FROM SAID SOLID BY FEEDING THE SOLID TO A HEATED SURFACE ABOVE ITS MELTING POINT AND IMMEDIATELY CONVERTING THE MOLTEN FILM TO SOLID FILM BY SUBJECTING IT TO AN ENVIRONMENT AT A TEMPERATURE BELOW ITS CRYSTALLIZING TEMPERATURE BUT HIGH ENOUGH TO AVOID SUPERCOOLING AND RECOVERING SOLID PRODUCT.
Claim 2
Dependent Claim
71 words
THE PROCESS OF PREPARING NORMALLY SOLID MATERIALS THAT GRADUALLY DETERIORATE AT MELTING TEMPERATURE, IN IMPROVED PHYSICAL FORM, WHICH COMPRISES IN COMBINATION FORMING MOLTEN FILM FROM SAID SOLID BY FEEDING THE SOLID TO A HEATED SURFACE ABOVE ITS MELTING POINT AND IMMEDIATELY CONVERTING THE MOLTEN FILM TO SOLID FILM BY SUBJECTING IT TO AN ENVIRONMENT AT A TEMPERATURE BELOW ITS CRYSTALLIZING TEMPERATURE BUT HIGH ENOUGH TO AVOID SUPERCOOLING AND RECOVERING SOLID PRODUCT.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |