US3067170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing high molecular weight epoxy-containing products from lower molecular weight polyepoxides
Assignee: Shell USA Inc
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Filing: 1958-01-29
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Granted: 1962-12-04
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Expires: 1978-01-29
Abstract
No abstract record available.
Inventors
- 👤 James E Carey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:46
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/18; C08G59/40; C08G59/50; C08G59/5093; C08G59/68; C08G59/72; C08J; C08J5/00; C08J5/24; C08J5/241; C08J5/244; C08J5/249; C08J2363/00; Y; Y10; Y10S; Y10S524/00; Y10S524/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR PREPARING A HIGH MOLECULAR WEIGHT EPOXY-CONTAINING POLYMER WHICH IS MADE UP IN ITS CHEMICAL COMPOSITION OF ONLY THE BASIC EPOXY-CONTAINING MONOMER USED IN ITS PREPARATION AS NOTED HEREAFER, IS ACETONESOLUBLE, IS STABLE IN THE ABSENCE OF HEAT, AND IS PARTICULARLY ADAPTED FOR THE FORMATION OF HEAT RESISTANT LAMINATED PRODUCTS, WHICH CONSISTS OF HEATING AT A TEMPERATURE BETWEEN 50*C. AND 200*C. A SOLUTION CONSISTING OF A LIQUID POLYEPOXIDE HAVING A
Claim 2
Dependent Claim
72 words
A PROCESS FOR PREPARING A HIGH MOLECULAR WEIGHT EPOXY-CONTAINING POLYMER WHICH IS MADE UP IN ITS CHEMICAL COMPOSITION OF ONLY THE BASIC EPOXY-CONTAINING MONOMER USED IN ITS PREPARATION AS NOTED HEREAFER, IS ACETONESOLUBLE, IS STABLE IN THE ABSENCE OF HEAT, AND IS PARTICULARLY ADAPTED FOR THE FORMATION OF HEAT RESISTANT LAMINATED PRODUCTS, WHICH CONSISTS OF HEATING AT A TEMPERATURE BETWEEN 50*C. AND 200*C. A SOLUTION CONSISTING OF A LIQUID POLYEPOXIDE HAVING A
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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |