US3021241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming perforated reinforced plastic containers
Assignee: Aerojet Rocketdyne Inc
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Filing: 1958-01-13
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Granted: 1962-02-13
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Expires: 1978-01-13
Abstract
No abstract record available.
Inventors
- 👤 Schneiderman Herman
- 👤 Robert H Bendarzewski
- 👤 John D Barney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/583; B29C53/587; B29C53/80; B29C53/82; B29C53/821; B29C53/824; B29L; B29L2031/00; B29L2031/737; Y; Y10; Y10S; Y10S264/00; Y10S264/70
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A METHOD OF FROMING A PERFORATED REINFORCED PLASTIC CONTAINER COMPRISING THE STEPS OF: PAINTING A PLASTIC COAT ON A REMOVABLE CORE HAVING A LONGITUDINAL AXIS AND A PLURALITY OF PROJECTIONS THEREON, APPLYING A MAT OF GLASS FIBER ON THE PROJECTIONS ON THE ENDS OF A RAEMOVABLE CORE, WRAPPING A PLURALITY OF ROVINGS BETWEEN THE PROJECTIONS ON THE REMOVABLE CORE AND OVER THE MAT OF THE GLASS FIBER IN A CRISSCROSS MANNER AT AN ANGLE OF 55* TO THE LONGITUDINAL AXIS OF THE CORE, IMPREGNATING THE ROVINGS AND MAT WITH A PLASTIC MATERIAL, CURING THE PLASTIC MATERIAL, AND REMOVING THE CORE.
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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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |