US2741607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triglycidyl cyanurate and polymers thereof
Assignee: Shell Development Co
•
Filing: 1954-02-23
•
Granted: 1956-04-10
•
Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 Theodore F Bradley
- 👤 Albert C Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:11
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3236; C08G59/3245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PROCESS FOR THE PRODUCTION OF AN ESTER OF CYANURIC ACID WHICH COMPRISES MIXING ABOUT 3 MOLS OF AN EPOXYALKANOL WHEREIN THE EPOXY IS AN OXIRANE GROUP WITH A MOL OF CYANURIC CHLORIDE, AND THEN ADDING ABOUT 3 MOLS OF ALKALI METAL HYDROXIDE TO THE MIXTURE WHILE MAINTAINING THE TEMPERATURE OF THE REACTION MIXTURE WITHIN THE RANGE OF ABOUT 0* C. TO 25* C.
Claim 2
Dependent Claim
64 words
A PROCESS FOR THE PRODUCTION OF AN ESTER OF CYANURIC ACID WHICH COMPRISES MIXING ABOUT 3 MOLS OF AN EPOXYALKANOL WHEREIN THE EPOXY IS AN OXIRANE GROUP WITH A MOL OF CYANURIC CHLORIDE, AND THEN ADDING ABOUT 3 MOLS OF ALKALI METAL HYDROXIDE TO THE MIXTURE WHILE MAINTAINING THE TEMPERATURE OF THE REACTION MIXTURE WITHIN THE RANGE OF ABOUT 0* C. TO 25* C.
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) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |