US3224853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for increasing the thermal insulating properties of vitreous materials and their adhesion to coherent substances
Assignee: Individual
•
Filing: 1961-11-17
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Granted: 1965-12-21
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Expires: 1981-11-17
Abstract
No abstract record available.
Inventors
- 👤 Pietsch Tibor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:31
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; C; C03; C03B; C03B19/00; C03B19/08; C03C; C03C11/00; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/049; Y; Y02; Y02A; Y02A30/00; Y02A30/24; Y02A30/244
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR INCREASING THE THERMAL INSULATING PROPERTIES OF VITREOUS MATERIALS AND THEIR ADHESION TO COHERENT SUBSTANCES COMPRISING SUBJECTING A VITREOUS MATERIAL CRUSHED TO A DETERMINED FINENESS OF PARTICLS, TO A COLD COMPRESSING OPERATION TOGETHER WITH A BINDING MATERIAL, THEN IMMEDIATELY RAISING THE TEMPERATURE TO APPROXIMATELY THE MELTING POINT THEREOF, THEN REDUCING SAID MATERIAL IN MOLTEN STATE TO ABOUT ONE HALF ITS HEIGHT AND THEN PROGRESSIVELY COOLING THE MASS.
Claim 2
Dependent Claim
69 words
A PROCESS FOR INCREASING THE THERMAL INSULATING PROPERTIES OF VITREOUS MATERIALS AND THEIR ADHESION TO COHERENT SUBSTANCES COMPRISING SUBJECTING A VITREOUS MATERIAL CRUSHED TO A DETERMINED FINENESS OF PARTICLS, TO A COLD COMPRESSING OPERATION TOGETHER WITH A BINDING MATERIAL, THEN IMMEDIATELY RAISING THE TEMPERATURE TO APPROXIMATELY THE MELTING POINT THEREOF, THEN REDUCING SAID MATERIAL IN MOLTEN STATE TO ABOUT ONE HALF ITS HEIGHT AND THEN PROGRESSIVELY COOLING THE MASS.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |