Patent US3245950A successfully refreshed from Google Patents.
US3245950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin compositions and cured products obtained therefrom
Assignee: Shell USA Inc
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Filing: 1962-08-15
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Granted: 1966-04-12
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Expires: 1982-08-15
Abstract
No abstract record available.
Inventors
- 👤 Roy T Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:02
CPC Classifications
C; C07; C07D; C07D407/00; C07D407/02; C07D407/06; C07D309/00; C07D309/16; C07D309/20; C07D309/22; C07D309/28; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C08G59/18; C08G59/20; C08G59/22; C08G59/226; C08G59/26; C08G59/30; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1545; C08J; C08J2363/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
36 words
A COMPOSITION COMPRISING (1) A POLYEPOXIDE POSSESSING MORE THAN ONE VIC-EPOXY GROUP, AND (2) FROM 1% TO 50% BY WEIGHT OF A COMPOUND CONTAINING A PLURALITY OF ETHYLENIC GROUPS WHICH ARE ADJACENT TO SEPARATE HETERO ATOMS.
Claim 2
Dependent Claim
36 words
A COMPOSITION COMPRISING (1) A POLYEPOXIDE POSSESSING MORE THAN ONE VIC-EPOXY GROUP, AND (2) FROM 1% TO 50% BY WEIGHT OF A COMPOUND CONTAINING A PLURALITY OF ETHYLENIC GROUPS WHICH ARE ADJACENT TO SEPARATE HETERO ATOMS.
Claim 3
Dependent Claim
26 words
A COMPOSITION COMPRISING (1) A POLYEPOXIDE POSSESSING MORE THAN ONE VIC-EPOXY GROUP, AND (2) FROM 1% TO 50% BY WEIGHT OF A COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
26 words
A COMPOSITION COMPRISING (1) A POLYEPOXIDE POSSESSING MORE THAN ONE VIC-EPOXY GROUP, AND (2) FROM 1% TO 50% BY WEIGHT OF A COMPOUND OF THE FORMULA
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |