US3676916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing metal molding compositions
Assignee: Monsanto Co
•
Filing: 1970-01-02
•
Granted: 1972-07-18
•
Expires: 1990-01-02
Abstract
Abstract Moldable pellets consisting essentially of a metal matrix having boron filaments positioned therein substantially in parallel and separated from each other by said metal; the method of producing the pellets, and the process of manufacturing shaped composite structures wherein said pellets are molded to the desired shape, e.g., by extrusion or transfer molding.
Inventors
- 👤 Royce G Schierding
- 👤 Tommy L Tolbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:31
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/01; C; C22; C22C; C22C47/00; Y; Y10; Y10S; Y10S29/00; Y10S29/029; Y10S29/047; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801; Y10T428/00; Y10T428/12; Y10T428/12465; Y10T428/29; Y10T428/2982
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
The method defined in claim 1 further limited in that the temperature is from 5* to 30* C. below the melting point of the metal.
Claim 2
Dependent Claim
67 words
The method defined in claim 1 wherein said moldable pellets are transfer molded by charging the pellets to a receptacle; heating the pellets to a temperature below the melting point of the matrix metal but sufficiently high to permit flow of the pellets; and applying pressure to force the pellets to flow through a runner and gate into a mold while maintaIning the pellets at said temperature.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |