US2951006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel-unit and method
Assignee: Individual
•
Filing: 1953-01-16
•
Granted: 1960-08-30
•
Expires: 1973-01-16
Abstract
No abstract record available.
Inventors
- 👤 Rubenstein David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/07; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; Y; Y10; Y10S; Y10S52/00; Y10S52/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
THE METHOD OF MAKING A COMPOSITE STRUCTURAL MEMBER FROM AT LEAST A PORTION OF THE MATERIALS PROVIDED IN A REEL-UNIT AND BONDED TO A POROUS STRUCTURAL MATERIAL WHEREIN THE SAID POROUS STRUCTURAL MATERIAL IS FIRST COVERED WITH A LAYER OF BONDING RESIN, A PACKAGE COMPRISING AN ENVELOPE BEING PROVIDED WITH A CORE OF HEATING ELEMENTS, UNPOLYMERIZED PLASTIC RESIN, AND A FIBROUS REINFORCEMENT IS UNROLLED FROM A REEL HAVING A BATTERY THEREIN AND WHICH BATTERY IS CONNECTED THROUGH AN OPEN CIRCUIT TO THE HEATING ELEMENTS, PRESSING AND RUPTURING THE ENVELOPE, THEN CLOSING THE CIRCUI BETWEEN THE BATTERY AND HEATING ELEMENTS WITH THE HEAT THEREFROM POLYMERIZING THE PLASTIC RESIN INTO A RIGID STATE ABOUT THE FIBROUS REINFORCEMENT AND AS A LAYER ON THE SURFACE AND INTO THE PORES OF THE SAID POROUS STRUCTURAL MATERIAL.
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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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |