US3042972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing articles having outer foamed portions
Assignee: Beazer East Inc
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Filing: 1960-06-24
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Granted: 1962-07-10
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Expires: 1980-06-24
Abstract
No abstract record available.
Inventors
- 👤 Gerald F Lafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:26
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/02; B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/50; B29C44/505; B29C51/00; B29C51/10; B29L; B29L2007/00; B29L2007/008; Y; Y10; Y10S; Y10S220/00; Y10S220/14; Y10S220/902; Y10S264/00; Y10S264/13; Y10S264/64; Y10S264/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR PRODUCING A SHAPED ARTICLE WHICH COMPRISES HEATING AT LEAST ONE SIDE OF A SHEET OF THERMOPLASTIC RESIN WHICH CONTAINS THEREIN AN EXPANDING AGENT FOR CREATING A FOAM STRUCTURE IN THE SHEET WHEN EXPOSED TO HEAT, THE HEATING BEING CONTINUED UNTIL SAID SHEET BECOMES OF A LIMP CHARACTER AND ONLY THE PORTION OF THE SHEET FACING THE HEAT SOURCE CONVERTS TO A FOAMED STRUCTURE, VACUUM FORMING SAID SHEET TO A DESIRED SHAPE, COOLING THE SHAPED ARTICLE TO PERMIT HARDENING AND REMOVING THE COOLED ARTICLE FROM THE SHAPING DEVICE.
Claim 2
Dependent Claim
90 words
A PROCESS FOR PRODUCING A SHAPED ARTICLE WHICH COMPRISES HEATING AT LEAST ONE SIDE OF A SHEET OF THERMOPLASTIC RESIN WHICH CONTAINS THEREIN AN EXPANDING AGENT FOR CREATING A FOAM STRUCTURE IN THE SHEET WHEN EXPOSED TO HEAT, THE HEATING BEING CONTINUED UNTIL SAID SHEET BECOMES OF A LIMP CHARACTER AND ONLY THE PORTION OF THE SHEET FACING THE HEAT SOURCE CONVERTS TO A FOAMED STRUCTURE, VACUUM FORMING SAID SHEET TO A DESIRED SHAPE, COOLING THE SHAPED ARTICLE TO PERMIT HARDENING AND REMOVING THE COOLED ARTICLE FROM THE SHAPING DEVICE.
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) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |