US3251818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isocyanurate compounds and preparative processes
Assignee: Gulf Oil Corp
•
Filing: 1961-04-24
•
Granted: 1966-05-17
•
Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Eric C Juenge
- 👤 William C Francis
- 👤 Donald L Burdick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:49
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3209; C08F; C08F18/00; C08F18/22; C08G59/22; C08G59/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
A VINYL TRI-SUBSTITUTED ISOCYANURATE SELECTED FROM THE GROUP OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
12 words
A VINYL TRI-SUBSTITUTED ISOCYANURATE SELECTED FROM THE GROUP OF THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
5 words
CLEAR, INFUSIBLE POLYMER OF 1,3,5-TRIVINYL-S-TRIAZINE2,4,6(1H,3H,5H)-TRIONE.
Claim 4
Dependent Claim
5 words
CLEAR, INFUSIBLE POLYMER OF 1,3,5-TRIVINYL-S-TRIAZINE2,4,6(1H,3H,5H)-TRIONE.
References Cited (Backward Citations)
US2977360A
Cited
US2334476A
Cited
US2580468A
Cited
US2643990A
Cited
US2860139A
Cited
US2965614A
Cited
GB856372A
Cited
US3065231A
Cited
US2977371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |