Patent US2857362A successfully refreshed from Google Patents.
US2857362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin
Assignee: UNITED STATES TESTING COMPANY Inc
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Filing: 1953-07-30
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Granted: 1958-10-21
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Expires: 1973-07-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Ridgley G Shepherd
- 👤 Elizabeth C Dearborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:18
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3218
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
AS NOVEL PRODUCTS, THE RESINS RESULTING FROM THE CURING OF (1) EPOXY COMPOUNDS COMPRISING A MEMBER OF THE GROUP CONSISTING OF 2,2,4,4-TETRAKIS(4''-GLYCIDYLOXYPHENYL)PENTANE AND 2,2,5,5-TETRAKIS(4''-GLYCIDYLOXYPHENYL)HEXANE AND (2) A CROSS-LINKING AGENT OF THE CLASS CONSISTING OF CARBOXYLIC ACID ANHYDRIDES AND AMINES.
Claim 2
Dependent Claim
39 words
AS NOVEL PRODUCTS, THE RESINS RESULTING FROM THE CURING OF (1) EPOXY COMPOUNDS COMPRISING A MEMBER OF THE GROUP CONSISTING OF 2,2,4,4-TETRAKIS(4''-GLYCIDYLOXYPHENYL)PENTANE AND 2,2,5,5-TETRAKIS(4''-GLYCIDYLOXYPHENYL)HEXANE AND (2) A CROSS-LINKING AGENT OF THE CLASS CONSISTING OF CARBOXYLIC ACID ANHYDRIDES AND AMINES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |