US3170895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazine polymers and method of making same
Assignee: Individual
•
Filing: 1962-08-23
•
Granted: 1965-02-23
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Expires: 1982-08-23
Abstract
No abstract record available.
Inventors
- 👤 Herbert K Reimschuessel
- 👤 Alan M Lovelace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:09
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/0644
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
THE METHOD OF PREPARING A NITROGEN-CONTAINING POLYMER WHICH COMPRISES HEATING UNDER REFLUX A MIXTURE IN SUBSTANTIALLY EQUIMOLAR PROPORTIONS OF 2-PHENYL-4,6-DIPHENOXY-S-TRIAZINE AND 2-PHENYL-4,6-DIANILINE-S-TRIAZINE AT A TEMPERATURE OF ABOUT 250*C. FOR ABOUT 10 HOURS.
Claim 2
Independent Claim
32 words
THE METHOD OF PREPARING A NITROGEN-CONTAINING POLYMER WHICH COMPRISES HEATING UNDER REFLUX A MIXTURE IN SUBSTANTIALLY EQUIMOLAR PROPORTIONS OF 2-PHENYL-4,6-DIPHENOXY-S-TRIAZINE AND 2-PHENYL-4,6-DIANILINE-S-TRIAZINE AT A TEMPERATURE OF ABOUT 250*C. FOR ABOUT 10 HOURS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |