US3078249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monolithic cast objects and method
Assignee: Spectra-Cast Corp
•
Filing: 1957-02-01
•
Granted: 1963-02-19
•
Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 Alexander H Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:39
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A RIGID, MONOLITHIC, CAST, RESINOUS ARTICLES COMPRISING THE REACTION PRODUCT OF AN EHTYLENICALLY UNSATURATED ALKYLD RESIN AND A POLYMERIZABLE VINCY MONOMER SOLVENT AND SAND AS A FILLER, THE SAND BEING IN AN AMOUNT OF FROM AT LEAST ABOUT 50% AND NOT OVER ABOUT 90% OF THE TOTAL WEIGHT OF THE RESIN, MONOMER SOLVENT AND FILLER BY WEIGHT SAID COMPOSITION ALSO HAVING PRESENT A CATIONMODIFIED CLAY IN THE FORM OF AN ONIUM DERICATIVE OF SAID CLAY, SAID COMPOSITION BEING CURED TO FORM A RIGID, MONOLITHIC CAST ARTICLE HAVING A SURFACE WHICH IS HARD, ABRASIONRESISTANT, SUBSTANTIALLY FREE OF SURFACE IMPERFECTIONS, BEING RESISTANT TO CRAZING AND CRACKING AND FREE FROM BUBBLES.
Claim 2
Dependent Claim
108 words
A RIGID, MONOLITHIC, CAST, RESINOUS ARTICLES COMPRISING THE REACTION PRODUCT OF AN EHTYLENICALLY UNSATURATED ALKYLD RESIN AND A POLYMERIZABLE VINCY MONOMER SOLVENT AND SAND AS A FILLER, THE SAND BEING IN AN AMOUNT OF FROM AT LEAST ABOUT 50% AND NOT OVER ABOUT 90% OF THE TOTAL WEIGHT OF THE RESIN, MONOMER SOLVENT AND FILLER BY WEIGHT SAID COMPOSITION ALSO HAVING PRESENT A CATIONMODIFIED CLAY IN THE FORM OF AN ONIUM DERICATIVE OF SAID CLAY, SAID COMPOSITION BEING CURED TO FORM A RIGID, MONOLITHIC CAST ARTICLE HAVING A SURFACE WHICH IS HARD, ABRASIONRESISTANT, SUBSTANTIALLY FREE OF SURFACE IMPERFECTIONS, BEING RESISTANT TO CRAZING AND CRACKING AND FREE FROM BUBBLES.
References Cited (Backward Citations)
US1831555A
Cited
US2514141A
Cited
US2534743A
Cited
US2645626A
Cited
US2622987A
Cited
US2691007A
Cited
US2802797A
Cited
US2871420A
Cited
US2819238A
Cited
US2852487A
Cited
US2830342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |