US3297639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethers of triazine and polyhydric aromatic compounds
Assignee: Individual
•
Filing: 1963-02-05
•
Granted: 1967-01-10
•
Expires: 1983-02-05
Abstract
No abstract record available.
Inventors
- 👤 Lewellyn G Picklesimer
- 👤 Thomas F Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:41
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/0644
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
24 words
THE COMPOSITION OF MATTER POLYMERIZATION PRODUCT HAVING A MELTING POINT OF AT LEAST 400*C. FROM REACTING RESOREINOL WITH CYANURIC CHLORIDE AND HAVING THE STRUCTURE:
Claim 2
Dependent Claim
24 words
THE COMPOSITION OF MATTER POLYMERIZATION PRODUCT HAVING A MELTING POINT OF AT LEAST 400*C. FROM REACTING RESOREINOL WITH CYANURIC CHLORIDE AND HAVING THE STRUCTURE:
Claim 3
Dependent Claim
76 words
THE PROCESS FOR SYNTHESIZING BY INTERFACIAL CONDENSATION A POLMERIC ETHER BY REACTING (1) AN AQUEOUS SOLUTION OF AN ALKALI AND A POLYHYDRIC AROMATIC COMPOUND SELECTED FROM THE GROP CONSISTING OF RESORCINOL, HYDROQUINONE AND DIHYDROXYBIPHENYL AND (2) AN ORGANIC SOLUTION OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF BENZENE, CHLOROBENZENE, CHLOROFORM AND DIBUTYLPHTHALATE AND A TRIAZINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYANURIC CHLORIDE AND PHENYLDICHLOROTRIAZINE, AND THEREAFTER ISOLATING FROM THE INTERFACE THE POLYMERIC ETHER.
Claim 4
Dependent Claim
76 words
THE PROCESS FOR SYNTHESIZING BY INTERFACIAL CONDENSATION A POLMERIC ETHER BY REACTING (1) AN AQUEOUS SOLUTION OF AN ALKALI AND A POLYHYDRIC AROMATIC COMPOUND SELECTED FROM THE GROP CONSISTING OF RESORCINOL, HYDROQUINONE AND DIHYDROXYBIPHENYL AND (2) AN ORGANIC SOLUTION OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF BENZENE, CHLOROBENZENE, CHLOROFORM AND DIBUTYLPHTHALATE AND A TRIAZINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYANURIC CHLORIDE AND PHENYLDICHLOROTRIAZINE, AND THEREAFTER ISOLATING FROM THE INTERFACE THE POLYMERIC ETHER.
References Cited (Backward Citations)
US2743258A
Cited
US3039872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |