US2941899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature glass fiber insulation products and method for manufacturing same
Assignee: Owens Corning
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Filing: 1954-12-27
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Granted: 1960-06-21
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Expires: 1974-12-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Stalego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:35
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B24/00; C04B41/45; C04B41/50; C04B41/5076; C04B41/5089; C04B41/60; C04B41/61; C04B41/65; C04B41/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE METHOD OF PRODUCING A THERMALLY STABLE POROUS BASE OF GLASS FIBERS BONDED WITH ORGANIC RESINOUS MATERIAL COMPRISING IMPREGNATING THE ORGANIC RESINOUS BONDED POROUS BASE WITH A COMPOSITION IN WHICH THE SOLIDS REMAINING ON THE BONDED GLASS FIBERS COMPRISE SILICIC ACID AND AN ORGANIC BORATE, AND HEATING THE MATERIAL AT A TEMPERATURE SUFFICIENT FOR REACTION TO FORM AN INORGANIC BINDER.
Claim 2
Independent Claim
60 words
THE METHOD OF PRODUCING A THERMALLY STABLE POROUS BASE OF GLASS FIBERS BONDED WITH ORGANIC RESINOUS MATERIAL COMPRISING IMPREGNATING THE ORGANIC RESINOUS BONDED POROUS BASE WITH A COMPOSITION IN WHICH THE SOLIDS REMAINING ON THE BONDED GLASS FIBERS COMPRISE SILICIC ACID AND AN ORGANIC BORATE, AND HEATING THE MATERIAL AT A TEMPERATURE SUFFICIENT FOR REACTION TO FORM AN INORGANIC BINDER.
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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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |