US3342665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced structural panels
Assignee: Owens Corning
•
Filing: 1962-02-19
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Granted: 1967-09-19
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Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Richard F Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:44
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20; E04C2/22; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/12; B29K; B29K2105/00; B29K2105/06; B29K2105/12; B29K2105/128; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1064; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/24149; Y10T428/24157; Y10T428/24628; Y10T428/24669; Y10T428/24686
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A LIGHTWEIGHT STRUCTURAL PANEL COMPRISING A CORE OF INTERMESHED GLASS FIBERS, A PLURALITY OF SPACED MASSES OF HARDENED INORGANIC CEMENTING MATERIAL HAVING GOOD CORE PENETRATING CHARACTERISTICS EXTENDING INTO SAID CORE FROM ONE SURFACE THEREOF AND TERMINATING A DISTANCE FROM THE OPPOSITE SURFACE, AND A PENETRATED AREA OF HARDENED CEMENTING MATERIAL EXTENDING FROM THE INNERMOST END OF EACH OF SAID MASSES TO THE OPPOSITE SURFACE OF SAID CORE.
Claim 2
Dependent Claim
67 words
A LIGHTWEIGHT STRUCTURAL PANEL COMPRISING A CORE OF INTERMESHED GLASS FIBERS, A PLURALITY OF SPACED MASSES OF HARDENED INORGANIC CEMENTING MATERIAL HAVING GOOD CORE PENETRATING CHARACTERISTICS EXTENDING INTO SAID CORE FROM ONE SURFACE THEREOF AND TERMINATING A DISTANCE FROM THE OPPOSITE SURFACE, AND A PENETRATED AREA OF HARDENED CEMENTING MATERIAL EXTENDING FROM THE INNERMOST END OF EACH OF SAID MASSES TO THE OPPOSITE SURFACE OF SAID 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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |