Patent US2951058A successfully refreshed from Google Patents.
US2951058A
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Resinous curing process using tetrahydro-1 h-oxazolo-(3, 4, c)-oxazole-7 a-methanol
Assignee: Wyeth Holdings LLC
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Filing: 1958-12-24
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Granted: 1960-08-30
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Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Ivor H Updegraff
- 👤 Richard H Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:35
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS FOR PREPARING SUBSTANTIALLY INFUSIBLE, INSOLUBLE RESINOUS PRODUCTS WHICH COMPRISES HEATING AN ESSENTIALLY LINEAR, FUSIBLE CONDENSATE OF A MONOHYDROXY BENZENE AND FORMALDEHYDE IN THE PRESENCE OF FROM ABOUT 5 TO 25% BASED ON THE WEIGHT OF SAID CONDENSATE OF TETRAHYDRO-1 H-OXAZOLO-(3,4 C)-OXAZOLE-7 A-METHANOL.
Claim 2
Dependent Claim
44 words
A PROCESS FOR PREPARING SUBSTANTIALLY INFUSIBLE, INSOLUBLE RESINOUS PRODUCTS WHICH COMPRISES HEATING AN ESSENTIALLY LINEAR, FUSIBLE CONDENSATE OF A MONOHYDROXY BENZENE AND FORMALDEHYDE IN THE PRESENCE OF FROM ABOUT 5 TO 25% BASED ON THE WEIGHT OF SAID CONDENSATE OF TETRAHYDRO-1 H-OXAZOLO-(3,4 C)-OXAZOLE-7 A-METHANOL.
References Cited (Backward Citations)
US2426128A
Cited
GB564506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |