US3340119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making molided cylinders
Assignee: Structural Fibers Inc
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Filing: 1963-07-08
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Granted: 1967-09-05
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Expires: 1983-07-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Wiltshire
- 👤 Edward C Pavlovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/44; B29C70/446; B29C53/00; B29C53/36; B29C53/38; B29C53/382; B29C70/30; B29C70/34; B29C70/342; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B29L; B29L2023/00; B29L2023/22; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T156/1038; Y10T156/1043; Y10T156/1044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A METHOD OF MAKING A FIBER-REINFORCED, MOLDED RESIN CYLINDER, COMPRISING THE STEPS OF PROVIDING A PLURALITY OF FIBROUS REINFORCING SHEETS, EACH OF SAID SHEETS HAVING AN EDGE-TO-EDGE DIMENSION SUBSTANTIALLY EQUAL TO THE CIRCUMFERENCE OF THE CYLINDER TO BE MOLDED, SUPERIMPOSING SAID SHEETS ON EACH OTHER IN AN OVERLAPPED, OFFSET RELATIONSHIP SO THAT AN EDGE OF EACH OVERLAPPED SHEET IS OFFSET FROM THE EDGE OF AN ADJACENT, OVERLAPPED SHEET A DISTANCE SUBSTANTIALLY EQUAL TO SAID EDGE-TO-EDGE DIMENSION DIVIDED BY THE NUMBER OF SHEETS, IMPREGNATING SAID SHEETS WITH RESIN, FORMING SAID SHEETS INTO A CYLINDER BY BUTTING AN EDGE OF EACH SHEET WITH ITS OWN, OPPOSITE EDGE, AND CURING SAID RESIN, WHEREBY SAID SHEETS FORM A MOLDED CYLINDER HAVING UNIFORMLY SPACED SEAMS.
Claim 2
Independent Claim
120 words
A METHOD OF MAKING A FIBER-REINFORCED, MOLDED RESIN CYLINDER, COMPRISING THE STEPS OF PROVIDING A PLURALITY OF FIBROUS REINFORCING SHEETS, EACH OF SAID SHEETS HAVING AN EDGE-TO-EDGE DIMENSION SUBSTANTIALLY EQUAL TO THE CIRCUMFERENCE OF THE CYLINDER TO BE MOLDED, SUPERIMPOSING SAID SHEETS ON EACH OTHER IN AN OVERLAPPED, OFFSET RELATIONSHIP SO THAT AN EDGE OF EACH OVERLAPPED SHEET IS OFFSET FROM THE EDGE OF AN ADJACENT, OVERLAPPED SHEET A DISTANCE SUBSTANTIALLY EQUAL TO SAID EDGE-TO-EDGE DIMENSION DIVIDED BY THE NUMBER OF SHEETS, IMPREGNATING SAID SHEETS WITH RESIN, FORMING SAID SHEETS INTO A CYLINDER BY BUTTING AN EDGE OF EACH SHEET WITH ITS OWN, OPPOSITE EDGE, AND CURING SAID RESIN, WHEREBY SAID SHEETS FORM A MOLDED CYLINDER HAVING UNIFORMLY SPACED SEAMS.
References Cited (Backward Citations)
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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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |