US3707414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel composite structure from resole resins and inorganic nodules
Assignee: PPG Industries Inc
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Filing: 1968-01-08
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Granted: 1972-12-26
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Expires: 1988-01-08
Abstract
Abstract THIS INVENTION RELATES TO COMPOSITES OF INORGANIC CELLULAR NODULES IN FOAMED PHENOLPLAST RESINS. THESE COMPOSITTIONS ARE USEFUL AS THERMAL INSULATION IN A VARIETY OF APPLICATIONS, INCLUDING BUILDING MATERIALS SUCH AS SLAB-STOCK INSULATION.
Inventors
- 👤 Marco Wismer
- 👤 Joseph F Bosso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:51
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; Y; Y10; Y10S; Y10S264/00; Y10S264/02; Y10S264/06; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/23; Y10T428/232; Y10T428/233; Y10T428/239; Y10T428/25; Y10T428/252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |