Patent US3112294A successfully refreshed from Google Patents.
US3112294A
Expired / Lapsed
US
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Polyepoxides from epoxy-substituted monocarboxylic acids, their preparation and polymers
Assignee: Shell USA Inc
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Filing: 1956-04-30
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Granted: 1963-11-26
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Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Newey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:21
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C07; C07D; C07D303/00; C07D303/02; C07D303/38; C07D303/40; C08G59/22; C08G59/24; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
HARD CURED PRODUCTS COMPRISING THE PRODUCT OF THE REACTION OF AN ESTER OF A VIC-EPOXY-SUBSTITUTED CARBOCYCLIC MONOCARBOXYLIC ACID AND A POLYHYDRIC ALCOHOL WITH A BORON TRIFLUORIDE COMPLEX.
Claim 2
Dependent Claim
27 words
HARD CURED PRODUCTS COMPRISING THE PRODUCT OF THE REACTION OF AN ESTER OF A VIC-EPOXY-SUBSTITUTED CARBOCYCLIC MONOCARBOXYLIC ACID AND A POLYHYDRIC ALCOHOL WITH A BORON TRIFLUORIDE COMPLEX.
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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |