Patent US3336426A successfully refreshed from Google Patents.
US3336426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing reinforced plastic articles
Assignee: Universal Moulded Fiber Glass Corp
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Filing: 1963-03-26
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Granted: 1967-08-15
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Expires: 1983-03-26
Abstract
No abstract record available.
Inventors
- 👤 Le Roy R Boggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:46
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/52; B29C70/521; B29C70/522; B29C70/525; Y; Y10; Y10S; Y10S273/00; Y10S273/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A METHOD FOR MAKING A RESIN ARTICLE OF ELONGATED SHAPE AND HAVING A WALL OF SUBSTNATIAL WIDTH AS COMPARED WITH THE THICKNESS THEREOF, WHICH METHOD COMPRISES FEEDING TO A FORMING PASSAGE OF SHAPE CONFORMING WITH THE CROSS SECTION OF THE ELONGATED ARTICLE BEING FORMED A SANDWICH OF AT LEAST TWO FIBROUS REINFORCEMENT STRIPS WITH A METAL STRIP THEREBETWEEN, THE FIBROUS REINFORCEMENT STRIPS BEING IMPREGREGNATED WITH A HEAT HARDENABLE RESIN MATERIAL AND THE METAL STRIP BEING FED TO THE FORMING PASSAGE AXIALLY THEREOF AND IN POSITION TO ENTER FLATWISE INTO THAT PART OF THE FORMING PASSAGE PROVIDING FOR FORMATION OF SAID WALL OF THE ARTICLE OF SUBSTANTIAL WIDTH AS COMPARED WITH ITS THICKNESS, HEATING THE RESIN MATERIAL TO HARDEN IT WHILE IT IS IN THE FORMING PASSAGE, AND PULLING ON THE HARDENED ARTICLE WITH THE METAL STRIP THEREIN BEYOND THE DISCHARGE END OF THE FORMING PASSAGE TO ADVANCE THE RESIN MATERIAL AND STRIPS THROUGH THE FORMING PASSAGE.
Claim 2
Independent Claim
156 words
A METHOD FOR MAKING A RESIN ARTICLE OF ELONGATED SHAPE AND HAVING A WALL OF SUBSTNATIAL WIDTH AS COMPARED WITH THE THICKNESS THEREOF, WHICH METHOD COMPRISES FEEDING TO A FORMING PASSAGE OF SHAPE CONFORMING WITH THE CROSS SECTION OF THE ELONGATED ARTICLE BEING FORMED A SANDWICH OF AT LEAST TWO FIBROUS REINFORCEMENT STRIPS WITH A METAL STRIP THEREBETWEEN, THE FIBROUS REINFORCEMENT STRIPS BEING IMPREGREGNATED WITH A HEAT HARDENABLE RESIN MATERIAL AND THE METAL STRIP BEING FED TO THE FORMING PASSAGE AXIALLY THEREOF AND IN POSITION TO ENTER FLATWISE INTO THAT PART OF THE FORMING PASSAGE PROVIDING FOR FORMATION OF SAID WALL OF THE ARTICLE OF SUBSTANTIAL WIDTH AS COMPARED WITH ITS THICKNESS, HEATING THE RESIN MATERIAL TO HARDEN IT WHILE IT IS IN THE FORMING PASSAGE, AND PULLING ON THE HARDENED ARTICLE WITH THE METAL STRIP THEREIN BEYOND THE DISCHARGE END OF THE FORMING PASSAGE TO ADVANCE THE RESIN MATERIAL AND STRIPS THROUGH THE FORMING PASSAGE.
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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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |