US2723705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making reinforced plastic laminates
Assignee: Owens Corning
•
Filing: 1950-07-21
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Granted: 1955-11-15
•
Expires: 1970-07-21
Abstract
No abstract record available.
Inventors
- 👤 Howard W Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/607; B29C53/68; B29C53/80; B29C53/8008; B29C53/805; B29C2793/00; B29C2793/009; B29L; B29L2009/00; Y; Y10; Y10S; Y10S138/00; Y10S138/02; Y10S425/00; Y10S425/012; Y10S74/00; Y10S74/10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18088; Y10T74/18128; Y10T74/18136
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
53 words
CONTINUOUS METHOD OF MAKING REINFORCED RESIN LAMINATES, COMPRISING GROUPING INDIVIDUAL FIBERS OF REINFORCING MATERIAL AROUND A MANDREL WITH THE FIBERS EXTENDING LONGITUDINALLY OF THE MANDREL, SIMULTANEOUSLY SPIRALLY WINDING A WARP OF FIBERS OF REINFORCING MATERIAL OVER THE LONGITUDINALLY EXTENDING FIBERS ON SAID MANDREL, AND SECURING THE FIBERS TOGETHER WITH A RESINOUS BINDING AGENT.
Claim 2
Dependent Claim
53 words
CONTINUOUS METHOD OF MAKING REINFORCED RESIN LAMINATES, COMPRISING GROUPING INDIVIDUAL FIBERS OF REINFORCING MATERIAL AROUND A MANDREL WITH THE FIBERS EXTENDING LONGITUDINALLY OF THE MANDREL, SIMULTANEOUSLY SPIRALLY WINDING A WARP OF FIBERS OF REINFORCING MATERIAL OVER THE LONGITUDINALLY EXTENDING FIBERS ON SAID MANDREL, AND SECURING THE FIBERS TOGETHER WITH A RESINOUS BINDING AGENT.
Claim 3
Dependent Claim
99 words
APPARATUS FOR FORMING REINFORCED RESIN LAMINATES, COMPRISING AN ELONGATED CYLINDRICAL MEMBER, SPOOLS CONTAINING WARPS OF LONG GLASS FIBERS HAVING THE FREE ENDS DISTRIBUTED AROUND THE CYLINDRICAL MEMBER AND ATTACHED TO THE LATTER, MEANS OF ADVANCING SAID MEMBER IN THE DIRECTION OF ITS LENGTH RELATIVE TO THE SPOOLS FOR UNWINDING THE WARPS, MEANS FOR WINDING AN ADDITIONAL WARP OF LONG GLASS FIBERS AROUND THE FIRST MENTIONED WARPS DURING ADVANCEMENT OF THE MEMBER, MEANS FOR APPLYING A RESINOUS BINDER TO THE FIBERS, MEANS FOR PRESSING THE WARPS TOGETHER, AND MEANS FOR CURING THE BINDER TO INTEGRALLY SECURE ALL THE WARPS TOGETHER.
Claim 4
Dependent Claim
99 words
APPARATUS FOR FORMING REINFORCED RESIN LAMINATES, COMPRISING AN ELONGATED CYLINDRICAL MEMBER, SPOOLS CONTAINING WARPS OF LONG GLASS FIBERS HAVING THE FREE ENDS DISTRIBUTED AROUND THE CYLINDRICAL MEMBER AND ATTACHED TO THE LATTER, MEANS OF ADVANCING SAID MEMBER IN THE DIRECTION OF ITS LENGTH RELATIVE TO THE SPOOLS FOR UNWINDING THE WARPS, MEANS FOR WINDING AN ADDITIONAL WARP OF LONG GLASS FIBERS AROUND THE FIRST MENTIONED WARPS DURING ADVANCEMENT OF THE MEMBER, MEANS FOR APPLYING A RESINOUS BINDER TO THE FIBERS, MEANS FOR PRESSING THE WARPS TOGETHER, AND MEANS FOR CURING THE BINDER TO INTEGRALLY SECURE ALL THE WARPS TOGETHER.
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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) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |