Patent US2858291A successfully refreshed from Google Patents.
US2858291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New composition of matter comprising epoxy resin, liquid polysulphide polymer, and buna-n
Assignee: Individual
•
Filing: 1956-01-23
•
Granted: 1958-10-28
•
Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Harry H Mcadam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:54
CPC Classifications
C; C08; C08L; C08L63/00; C08L81/00; C08L81/02; C08L81/04; C08L33/00; C08L33/18; C08L33/20; C08L9/00; C08L9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
THE COMBINATION OF A GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL, RUBBERY COPOLYMER OF BUTADIENE AND ACRYLONITRILE, AND POLYTHIOIPOLYMERCAPTAN LIQUID AT ROOM TEMPERATURE, SAID COMPOSITION MADE UP OF ABOUT 50-60 PARTS OF SAID GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL; 2030 PARTS OF SASID RUBBERY COPOLYMER, AND 10-15 PARTS OF SAID POLYTHIOPOLYMERCAPTAN.
Claim 2
Dependent Claim
50 words
THE COMBINATION OF A GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL, RUBBERY COPOLYMER OF BUTADIENE AND ACRYLONITRILE, AND POLYTHIOIPOLYMERCAPTAN LIQUID AT ROOM TEMPERATURE, SAID COMPOSITION MADE UP OF ABOUT 50-60 PARTS OF SAID GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL; 2030 PARTS OF SASID RUBBERY COPOLYMER, AND 10-15 PARTS OF SAID POLYTHIOPOLYMERCAPTAN.
References Cited (Backward Citations)
US2080363A
Cited
US2466963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |