Patent US3220870A successfully refreshed from Google Patents.
US3220870A
Expired / Lapsed
US
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Composite articles and method of making the same
Assignee: OI Glass Inc
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Filing: 1960-12-30
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Granted: 1965-11-30
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 Harry F Loehrke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:54
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/06; C03C17/10; C03C17/02; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/131
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
79 words
A METHOD OF IMPARTING THERMAL CONDUCTIVITY TO A DEVITRIFIED GLASS CONTAINER COMPRISING IMMERSING A NONROUGHENED PORTION OF SAID CONTAINER IN A MOLTEN THERMALLY COMPATIBLE COATING MATERIAL WHICH IS AT A TEMPERATURE LESS THAN 1950*F., WHICH IS THERMALLY CONDUCTIVE WHEN SOLIDIFIED AND WHICH ADHERES TO SAID CONTAINER BOTTOM, AND THEREAFTER COOLING SAID GLASS CONTAINER WITH THE LAYER OF THERMALLY CONDUCTIVE MATERIAL ADHERING TO THE BOTTOM THEREOF, SAID LAYER HAVING A RELATIVELY HIGH THERMAL CONDUCTIVITY WITH RESPECT TO THE DEVITRIFIED GLASS.
Claim 2
Independent Claim
79 words
A METHOD OF IMPARTING THERMAL CONDUCTIVITY TO A DEVITRIFIED GLASS CONTAINER COMPRISING IMMERSING A NONROUGHENED PORTION OF SAID CONTAINER IN A MOLTEN THERMALLY COMPATIBLE COATING MATERIAL WHICH IS AT A TEMPERATURE LESS THAN 1950*F., WHICH IS THERMALLY CONDUCTIVE WHEN SOLIDIFIED AND WHICH ADHERES TO SAID CONTAINER BOTTOM, AND THEREAFTER COOLING SAID GLASS CONTAINER WITH THE LAYER OF THERMALLY CONDUCTIVE MATERIAL ADHERING TO THE BOTTOM THEREOF, SAID LAYER HAVING A RELATIVELY HIGH THERMAL CONDUCTIVITY WITH RESPECT TO THE DEVITRIFIED GLASS.
Claim 3
Dependent Claim
13 words
A THERMALLY CONDUCTIVE DEVITRIFIED GLASS CONTAINER MADE BY THE PROCESS OF CLAIM 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |