US3409592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy-containing condensates, their preparation and use
Assignee: Shell USA Inc
•
Filing: 1966-12-27
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Granted: 1968-11-05
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Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 Alton J Landua
- 👤 James R Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:25
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; Y; Y10; Y10S; Y10S525/00; Y10S525/934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
ACETONE-SOLUBLE HIGHLY REACTIVE EPOXY-CONTAINING CONDENSATES OF (1) A POLYEPOXIDE POSSESSING MORE THAN 1 VIC-EPOXY GROUP, AND (2) AND ALIPHATIC OR CYCLOALIPHATIC AMINE POSSESSING AT LEAST TWO HYDROGEN ATTACHED TO AMINO NITROGEN, SAID CONDENSATE HAVING A SOFTENING POINT OF AT LEAST 50*C. AND A WEIGHT PER EPOXIDE OF AT LEAST 300.
Claim 2
Dependent Claim
50 words
ACETONE-SOLUBLE HIGHLY REACTIVE EPOXY-CONTAINING CONDENSATES OF (1) A POLYEPOXIDE POSSESSING MORE THAN 1 VIC-EPOXY GROUP, AND (2) AND ALIPHATIC OR CYCLOALIPHATIC AMINE POSSESSING AT LEAST TWO HYDROGEN ATTACHED TO AMINO NITROGEN, SAID CONDENSATE HAVING A SOFTENING POINT OF AT LEAST 50*C. AND A WEIGHT PER EPOXIDE OF AT LEAST 300.
References Cited (Backward Citations)
US2865888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |