Patent US3923535A successfully refreshed from Google Patents.
US3923535A
Expired / Lapsed
US
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Heat insulating material
Assignee: Individual
•
Filing: 1974-08-08
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Granted: 1975-12-02
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Expires: 1994-08-08
Abstract
Abstract A heat insulating material is disclosed comprising comprises powdery and liquid components in the following % by weight: sand 17-19, asbestos 8-10, ferrochromium slag 2-3, chamotte powder being the balance; liquid glass, 9-10, and water, 19-21% in addition to 100% of the powdery components; a foaming agent of the surface-active substance type, 0-5-1.0% in addition to 100% of the liquid components.
Inventors
- 👤 Leonid Borisovich Zilberman
- 👤 Semen Borisovich Krakhmalnikov
- 👤 Gennady Alexandrovich Kudinov
- 👤 Dorina Borisovna Kutsykovich
- 👤 Jury Gavrilovich Moiseev
- 👤 Abram Mikhailovich Shneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:03
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
23 words
A HEAT INSULATING MATERIAL COMPRISING POWDERY AND LIQUID COMPONENTS IN % BY WEIGHT: THE POWDERY COMPONENT BEING A FILLER HAVING THE FOLLOWING COMPOSITION
Claim 2
Dependent Claim
23 words
A HEAT INSULATING MATERIAL COMPRISING POWDERY AND LIQUID COMPONENTS IN % BY WEIGHT: THE POWDERY COMPONENT BEING A FILLER HAVING THE FOLLOWING COMPOSITION
Claim 3
Dependent Claim
26 words
The heat insulating material of claim 1 wherein said chamotte powder has a particle size of up to 2mm with up to 7% of 2mm particles.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |