Patent US2847394A successfully refreshed from Google Patents.
US2847394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions of polyepoxide polyesters and aromatic sulfonamide-aldehyde condensates and method of making same
Assignee: SC Johnson and Son Inc
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Filing: 1955-06-02
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Granted: 1958-08-12
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Expires: 1975-06-02
Abstract
No abstract record available.
Inventors
- 👤 Sylvan O Greenlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:51
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
REACTION MIXTURES USEFUL IN THE PRODUCTION OF MORE HIGHLY POLYMERIZED REACTION PRODUCTS COMPRISING POLYEPOXIDE POLYESTERS OF TETRAHYDROPHTHALIC ACID AND GLYCOLS, SAID POLYESTERS CONTAINING EPOXIDE GROUPS FORMED BY REPLACING ONE BOND OF THE OLEFIN LINKAGE OF TETRAHYDROPHTHALIC ACID WITH EPOXY OXYGEN, AND ACTIVE HYDROGENCONTAINING CONDENSATES OF AROMATIC SULFONAMIDES AND ALDEHYDES.
Claim 2
Dependent Claim
49 words
REACTION MIXTURES USEFUL IN THE PRODUCTION OF MORE HIGHLY POLYMERIZED REACTION PRODUCTS COMPRISING POLYEPOXIDE POLYESTERS OF TETRAHYDROPHTHALIC ACID AND GLYCOLS, SAID POLYESTERS CONTAINING EPOXIDE GROUPS FORMED BY REPLACING ONE BOND OF THE OLEFIN LINKAGE OF TETRAHYDROPHTHALIC ACID WITH EPOXY OXYGEN, AND ACTIVE HYDROGENCONTAINING CONDENSATES OF AROMATIC SULFONAMIDES AND ALDEHYDES.
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) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |