Patent US2104209A successfully refreshed from Google Patents.
Patent US2969334A successfully refreshed from Google Patents.
US2969334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising dichloromaleic anhydride and an epoxy resin and method of using same
Assignee: FMC Corp
•
Filing: 1958-09-03
•
Granted: 1961-01-24
•
Expires: 1978-09-03
Abstract
No abstract record available.
Inventors
- 👤 Steckler Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:43
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4207; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T442/00; Y10T442/20; Y10T442/2615
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A METHOD OF PRODUCING A FOAMED RESINOUS PRODUCT FROM A COMPOSITION COMPRISING DICHLOROMALEIC AN HYDRIDE AND A GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL HAVING AN AVERAGE OF BETWEEN ONE AND TWO 1,2-EPOXY GROUPS PER MOLECULE COMPRISING: PULVERIZING THE DICHLOROMALEIC ANHYDRIDE, DISPERSING THE PULVERIZED DICHLOROMALEIC ANHYDRIDE IN THE EPOXY RESIN AT A TEMPERATURE BELOW THE CURING TEMPERATURE OF THE COMPOSITION, ADDING A FOAMING AGENT, AND CURING THE COMPOSITION AT A TEMPERATURE AT WHICH SAID FOAMING AGENT CONTINUOUSLY LIBERATES GAS BUBBLES.
References Cited (Backward Citations)
US2739134A
Cited
US2768153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |