US3331694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sintered product for use in foaming ceramics
Assignee: Synfibrit GmbH
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Filing: 1963-05-31
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Granted: 1967-07-18
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Expires: 1983-05-31
Abstract
No abstract record available.
Inventors
- 👤 Heidrich Walter
- 👤 Korner Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:01
CPC Classifications
C; C04; C04B; C04B38/00; C04B38/02; C03; C03B; C03B19/00; C03B19/08; C03C; C03C11/00; C03C11/007; C04B18/00; C04B18/02; C04B18/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN THE MANUFACTURE OF FOAM-LIKE BODIES OF SMALL SIZE FROM GLASS-FORMING SILICATES AND FOAM-PRODUCING SUBSTANCES, A CONDENSED INTERMEDIATE PRODUCT FOR USE IN FOAMING, SAID PRODUCT COMPRISING SMALL SIZE PARTICLES CONTAINING THE SUBSTANCE TO BE FOAMED AND THE FOAM-PRODUCING SUBSTANCE, AND A SEPARATING MATERIAL WHICH DOES NOT BAKE AND DOES NOT COMBINE WITH THE FOAM AT FOAMPRODUCING TEMPERATURES, SAID PARTICLES BEING EMBEDDED IN SAID MATERIAL.
Claim 2
Dependent Claim
64 words
IN THE MANUFACTURE OF FOAM-LIKE BODIES OF SMALL SIZE FROM GLASS-FORMING SILICATES AND FOAM-PRODUCING SUBSTANCES, A CONDENSED INTERMEDIATE PRODUCT FOR USE IN FOAMING, SAID PRODUCT COMPRISING SMALL SIZE PARTICLES CONTAINING THE SUBSTANCE TO BE FOAMED AND THE FOAM-PRODUCING SUBSTANCE, AND A SEPARATING MATERIAL WHICH DOES NOT BAKE AND DOES NOT COMBINE WITH THE FOAM AT FOAMPRODUCING TEMPERATURES, SAID PARTICLES BEING EMBEDDED IN SAID MATERIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |