US3178490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a foamed plastic article having a dense skin
Assignee: ATK Launch Systems LLC
•
Filing: 1961-10-06
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Granted: 1965-04-13
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Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 Daniel A Petrino
- 👤 Richard L Elmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:17
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/34; Y; Y10; Y10S; Y10S220/00; Y10S220/14; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T428/249989
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR PRODUCING AN INTEGRALLY FORMED, SMOOTH SKINNED STRUCTURAL FOAM MEMBER WHICH COMPRISES CHARGING A MOLD WITH A PLASTIC MATERIAL BASED FOAMABLE FORMULATION, SAID FORMULATION CONTAINING APPROXIMATELY 3 TO 10 TIME THE FORMULATION WEIGHT NORMALLY REQUIRED TO FORM A FOAMED MASS HAVING A DENSITY OF APPROXIMATELY 2 TO 4 POUNDS PER CUBIC FOOT IN AID MOLD, CLOSING SAID MOLD, ALLOWING SAID FOAMABLE FORMULATION TO FOAM TO A SHAPE SUPPORTING STATE AND RECOVERING THE RESULTING STRUTURAL FOAM MEMBER FROM SAID MOLD.
Claim 2
Dependent Claim
81 words
A PROCESS FOR PRODUCING AN INTEGRALLY FORMED, SMOOTH SKINNED STRUCTURAL FOAM MEMBER WHICH COMPRISES CHARGING A MOLD WITH A PLASTIC MATERIAL BASED FOAMABLE FORMULATION, SAID FORMULATION CONTAINING APPROXIMATELY 3 TO 10 TIME THE FORMULATION WEIGHT NORMALLY REQUIRED TO FORM A FOAMED MASS HAVING A DENSITY OF APPROXIMATELY 2 TO 4 POUNDS PER CUBIC FOOT IN AID MOLD, CLOSING SAID MOLD, ALLOWING SAID FOAMABLE FORMULATION TO FOAM TO A SHAPE SUPPORTING STATE AND RECOVERING THE RESULTING STRUTURAL FOAM MEMBER FROM SAID MOLD.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |