Patent US3296207A successfully refreshed from Google Patents.
US3296207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of polyformals of beta-hydroxyalkyl-isocyanurates and products thereof
Assignee: FMC Corp
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Filing: 1961-12-29
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Granted: 1967-01-03
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Richard W Cummins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:33
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; C; C08; C08G; C08G2/00; C08G2/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A WATER-INSOLUBLE THERMOPLASTIC LINEAR POLYMER COMPOSITON WHICH CONSISTS ESSENTIALLY OF THE REACTION PRODUCT OF A COMPOUND SELECTED FROM THE GROUP CNSISTING OF BIS(B-HYDROXYALKYL) ISOCYANURATES AND TRIS-(B-HYDROXYALKYL) ISOCYANURATES IN WHICH THE ALKYL RADICAL OF EACH MEMBER OF THE GROUP CONTAINS FROM TWO TO THREE CARBON ATOMS AND FORMALDEHYDE, SAID REACTION PRODUCT BEING FORMED AT FROM ABOUT 50-160*C., SAID COMPOUND SELECTED FROM SAID GROUP BEING PRESENT IN THE RATIO OF ABOUT ONE MOLE PER MOLE OF SAID FORMALDEHYDE.
Claim 2
Dependent Claim
76 words
A WATER-INSOLUBLE THERMOPLASTIC LINEAR POLYMER COMPOSITON WHICH CONSISTS ESSENTIALLY OF THE REACTION PRODUCT OF A COMPOUND SELECTED FROM THE GROUP CNSISTING OF BIS(B-HYDROXYALKYL) ISOCYANURATES AND TRIS-(B-HYDROXYALKYL) ISOCYANURATES IN WHICH THE ALKYL RADICAL OF EACH MEMBER OF THE GROUP CONTAINS FROM TWO TO THREE CARBON ATOMS AND FORMALDEHYDE, SAID REACTION PRODUCT BEING FORMED AT FROM ABOUT 50-160*C., SAID COMPOUND SELECTED FROM SAID GROUP BEING PRESENT IN THE RATIO OF ABOUT ONE MOLE PER MOLE OF SAID FORMALDEHYDE.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |