Patent US2700633A successfully refreshed from Google Patents.
US2700633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating structure and method of forming same
Assignee: General Electric Co
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Filing: 1952-05-02
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Granted: 1955-01-25
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Expires: 1972-05-02
Abstract
No abstract record available.
Inventors
- 👤 Harold P Bovenkerk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:08
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/001; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B1/80; E04B1/803; Y; Y02; Y02A; Y02A30/00; Y02A30/24; Y02A30/242; Y02B; Y02B80/00; Y02B80/10; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
AN INSULATING STRUCTURE OF THE VACUUM TYPE COMPRISING A PAIR OF SPACED WALLS HAVING ABUTTING EDGES, SAID EDGES BEING ADAPTED TO BE WELDED TO PROVIDE A SEALED ENVELOPE, A BATT OF GLASS FIBER FILLER MATERIALS IN THE SPACE BETWEEN SAID WALLS FOR SUPPORTING SAID WALLS AGAINST EXTERNAL ATMOSPHERIC PRESSURE, THE GLASS FIBERS OF SAID BATT BEING IN PLANES SUBSTANTIALLY PARALLEL TO SAID PAIR OF SPACED WALLS, SAID BATT INCLUDING PERIPHERAL WALLS EXTENDING BETWEEN SAID PAIR OF SPACED WALLS, THE GLASS FIBERS FORMING SAID PERIPHERAL WALLS BEING FUSED TOGETHER TO BLOCK ENTRY OF GLASS FIBERS AND GLASS SHOT FROM THE CENTRAL PORTION OF SAID BATT INTO THE WELD AREA.
Claim 2
Dependent Claim
108 words
AN INSULATING STRUCTURE OF THE VACUUM TYPE COMPRISING A PAIR OF SPACED WALLS HAVING ABUTTING EDGES, SAID EDGES BEING ADAPTED TO BE WELDED TO PROVIDE A SEALED ENVELOPE, A BATT OF GLASS FIBER FILLER MATERIALS IN THE SPACE BETWEEN SAID WALLS FOR SUPPORTING SAID WALLS AGAINST EXTERNAL ATMOSPHERIC PRESSURE, THE GLASS FIBERS OF SAID BATT BEING IN PLANES SUBSTANTIALLY PARALLEL TO SAID PAIR OF SPACED WALLS, SAID BATT INCLUDING PERIPHERAL WALLS EXTENDING BETWEEN SAID PAIR OF SPACED WALLS, THE GLASS FIBERS FORMING SAID PERIPHERAL WALLS BEING FUSED TOGETHER TO BLOCK ENTRY OF GLASS FIBERS AND GLASS SHOT FROM THE CENTRAL PORTION OF SAID BATT INTO THE WELD AREA.
Claim 3
Independent Claim
60 words
THE METHOD OF FORMING AN INSULATING STRUCTURE WHICH COMPRISES PROVIDING A BATT OF GLASS FIBER INSULATING MATERIAL, MOVING A FLAME ALONG THE PERIPHERAL WALLS OF SAID BATT TO FUSE THE GLASS FIBERS INTO A THIN PERIPHERAL LAYER AT SAID WALLS, PLACING SAID BATT WITHIN AN ENVELOPE, WELDING THE EDGES OF SAID ENVELOPE TO SEAL SAID ENVELOPE, AND EVACUATING SAID ENVELOPE.
Claim 4
Independent Claim
60 words
THE METHOD OF FORMING AN INSULATING STRUCTURE WHICH COMPRISES PROVIDING A BATT OF GLASS FIBER INSULATING MATERIAL, MOVING A FLAME ALONG THE PERIPHERAL WALLS OF SAID BATT TO FUSE THE GLASS FIBERS INTO A THIN PERIPHERAL LAYER AT SAID WALLS, PLACING SAID BATT WITHIN AN ENVELOPE, WELDING THE EDGES OF SAID ENVELOPE TO SEAL SAID ENVELOPE, AND EVACUATING SAID ENVELOPE.
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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) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |