US2623866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous material from a phenyl borate and an aldehyde
Assignee: Old Carco LLC
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Filing: 1951-05-26
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Granted: 1952-12-30
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Expires: 1971-05-26
Abstract
No abstract record available.
Inventors
- 👤 Sumner B Twiss
- 👤 Adam P Sporzynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:00
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G16/00; C08G16/02; C08G16/0212; C08G16/0218
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
45 words
A THERMOSETTING RESINOUS MATERIAL COMPRISING THE HEAT REACTION PRODUCT OF AN ALDEHYDE AND A PREFORMED BORATE ESTER HAVING AT LEAST TWO PHENYL SUBSTITUTENT GROUPS AND IN WHICH ESTER ANY SUBSTITUENT GROUP INDEPENDENT OF AND IN EXCESS OF SAID TWO PHENYL GROUPS IS A HYDROCARBON GROUP.
References Cited (Backward Citations)
US1439056A
Cited
US1678107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |