Patent US3290197A successfully refreshed from Google Patents.
US3290197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making filament wound plastic containers
Assignee: Individual
•
Filing: 1963-03-27
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Granted: 1966-12-06
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Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Robert J Carmody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:16
CPC Classifications
B; B21; B21F; B21F17/00; B29; B29C; B29C35/00; B29C35/02; B29C35/0272; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602; B29C53/80; B29C53/84; B29C53/845; F; F02; F02K; F02K9/00; F02K9/80; F02K9/92; F02K9/96; F42; F42B; F42B15/00; F42B15/36; F42D; F42D3/00; B29L; B29L2031/00; B29L2031/30; B29L2031/3097; B29L2031/712; B29L2031/7126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
THE METHOD OF FABRICATING A FILAMENT WOUND CONTAINER COMPRISING: (A) WINDING A FIRST LAYER OF RESINOUS IMPREGNATED ROVING MATERIAL AROUND A FORM; (B) WINDING AN ELECTRICAL CURRENT CONDUCTIVE ELEMENT OVER SAID FIRST LAYER OF ROVING MATERIAL; (C) WINDING A SECOND LAYER OF RESINOUS IMPREGNATED ROVING MATERIAL AROUND SAID FORM; (D) PLACING A LAYER OF HONEYCOMB MATERIAL AROUND SAID SECOND LAYER OR ROVING MATERIAL; (E) WINDING A THIRD LAYER OF RESINOUS IMPREGNATED ROVING MATERIAL AROUND SAID HONEYCOMB MATERIAL; AND (F) APPLYING AN ELECTRICAL CURRENT TO SAID CURRENT CONDUCTIVE ELEMENT TO HEAT AND CURE SAID FIRST AND SECOND LAYERS OF ROVING MATERIAL INTO A UNITARY STRUCTURE, (1) SAID THIRD LAYER OF ROVING MATERIAL BEING CURED ABOUT SAID HONEYCOMB MATERIAL BY THE HEAT PRODUCED BY SAID CURRENT CONDUCTIVE ELEMENT THEREBY FORMING A FILAMENT WOUND CONTAINER; AND (G) REMOVING SAID FILAMENT WOUND CONTAINER FROM SAID FORM.
Claim 2
Independent Claim
142 words
THE METHOD OF FABRICATING A FILAMENT WOUND CONTAINER COMPRISING: (A) WINDING A FIRST LAYER OF RESINOUS IMPREGNATED ROVING MATERIAL AROUND A FORM; (B) WINDING AN ELECTRICAL CURRENT CONDUCTIVE ELEMENT OVER SAID FIRST LAYER OF ROVING MATERIAL; (C) WINDING A SECOND LAYER OF RESINOUS IMPREGNATED ROVING MATERIAL AROUND SAID FORM; (D) PLACING A LAYER OF HONEYCOMB MATERIAL AROUND SAID SECOND LAYER OR ROVING MATERIAL; (E) WINDING A THIRD LAYER OF RESINOUS IMPREGNATED ROVING MATERIAL AROUND SAID HONEYCOMB MATERIAL; AND (F) APPLYING AN ELECTRICAL CURRENT TO SAID CURRENT CONDUCTIVE ELEMENT TO HEAT AND CURE SAID FIRST AND SECOND LAYERS OF ROVING MATERIAL INTO A UNITARY STRUCTURE, (1) SAID THIRD LAYER OF ROVING MATERIAL BEING CURED ABOUT SAID HONEYCOMB MATERIAL BY THE HEAT PRODUCED BY SAID CURRENT CONDUCTIVE ELEMENT THEREBY FORMING A FILAMENT WOUND CONTAINER; AND (G) REMOVING SAID FILAMENT WOUND CONTAINER FROM SAID FORM.
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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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |