Patent US5960409A successfully refreshed from Google Patents.
US3333656A
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US
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Fibrous acoustical panel with impregnant in rear body portion
Assignee: Owens Corning
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Filing: 1964-10-29
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Granted: 1967-08-01
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Expires: 1984-10-29
Abstract
No abstract record available.
Inventors
- 👤 Richard F Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:00
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/04; E04B9/045; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B2001/8245; E04B2001/8457; E04B2001/8461
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN ACOUSTICAL PANEL HAVING A BODY OF BONDED MINERAL FIBERS, KERFS IN THE SIDE EDGES OF THE PANEL FOR RECEIVING HANGER ELEMENTS, A FIRE RESISTING IMPREGNANT OF MINERAL MATERIAL IN PARTICULATE FORM EXTENDING DOWN INTO THE PANEL FROM THE REAR SIDE THEREOF PAST THE KERFS IN THE EDGES BUT EXTENDING SHORT OF THE FRONT SIDE OF THE PANEL, SAID IMPREGNANT HAVING SUFFICIENT STIFFENING EFFECT TO HOLD THE BODY OF BONDED MINERAL FIBERS AGAINST DEFORMATION UNDER HIGH HEAT.
Claim 2
Dependent Claim
77 words
AN ACOUSTICAL PANEL HAVING A BODY OF BONDED MINERAL FIBERS, KERFS IN THE SIDE EDGES OF THE PANEL FOR RECEIVING HANGER ELEMENTS, A FIRE RESISTING IMPREGNANT OF MINERAL MATERIAL IN PARTICULATE FORM EXTENDING DOWN INTO THE PANEL FROM THE REAR SIDE THEREOF PAST THE KERFS IN THE EDGES BUT EXTENDING SHORT OF THE FRONT SIDE OF THE PANEL, SAID IMPREGNANT HAVING SUFFICIENT STIFFENING EFFECT TO HOLD THE BODY OF BONDED MINERAL FIBERS AGAINST DEFORMATION UNDER HIGH HEAT.
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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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |