US3068133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for manufacturing a reinforced plastic product
Assignee: FMC Corp
•
Filing: 1957-09-16
•
Granted: 1962-12-11
•
Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 William H Cilker
- 👤 Jr David S Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:50
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD OF MAKING A TUBULAR PLASTIC PRODUCT COMPRISING THE STEPS OF FORMING A LAMINATED TUBULAR STRUCTURE HAVING A PLURALITY OF SUPERPOSED LAYERS OF RESINIMPREGNATED MATERIAL, DIRECTING FLUID UNDER PRESSURE TO THE INTERIOR OF AND INTO DIRECT CONTACT WITH THE INNER SURFACE OF A LENGHT OF THE LAMINATED TUBULAR STRUCTURE, SAID FLUID BEING AT A PRESSURE SUFFICIENT TO PROVIDE THE SOLE MEANS FOR MAINTAINING THE TUBULAR STRUCTURE, AND CURING THE RESIN IN SAID LENGHT OF THE LAMINATED TUBULAR STRUCTURE WHILE SAID LENGHTS IS SUBJECTED TO THE EXPANSIVE FORCE OF THE PRESSURIZED FLUID.
Claim 2
Independent Claim
92 words
A METHOD OF MAKING A TUBULAR PLASTIC PRODUCT COMPRISING THE STEPS OF FORMING A LAMINATED TUBULAR STRUCTURE HAVING A PLURALITY OF SUPERPOSED LAYERS OF RESINIMPREGNATED MATERIAL, DIRECTING FLUID UNDER PRESSURE TO THE INTERIOR OF AND INTO DIRECT CONTACT WITH THE INNER SURFACE OF A LENGHT OF THE LAMINATED TUBULAR STRUCTURE, SAID FLUID BEING AT A PRESSURE SUFFICIENT TO PROVIDE THE SOLE MEANS FOR MAINTAINING THE TUBULAR STRUCTURE, AND CURING THE RESIN IN SAID LENGHT OF THE LAMINATED TUBULAR STRUCTURE WHILE SAID LENGHTS IS SUBJECTED TO THE EXPANSIVE FORCE OF THE PRESSURIZED FLUID.
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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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |