US3433767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphonitrilic laminating and molding resins employing mg(oh)2 as a curing catalyst
Assignee: WR Grace and Co
•
Filing: 1967-11-03
•
Granted: 1969-03-18
•
Expires: 1987-11-03
Abstract
No abstract record available.
Inventors
- 👤 James M Maselli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:11
CPC Classifications
C; C08; C08L; C08L85/00; C08L85/02; C08G; C08G79/00; C08G79/02; C08G79/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2866773A
Cited
US2979484A
Cited
US3194787A
Cited
US3121704A
Cited
FR1270800A
Cited
US3219515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |