US3897580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-pane building-panel
Assignee: Individual
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Filing: 1971-03-05
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Granted: 1975-07-29
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Expires: 1991-03-05
Abstract
Abstract A multi-pane building-panel comprising first and second panes that are disposed in essentially parallel face-to-face relationship and spaced less than two millimeters from each other and at least one other pane spaced from the closest face of said first and second panels by a distance greater than two millimeters.
Inventors
- 👤 Nils Stig Percy Ingemansson
- 👤 Jorgen Rasmus Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:55
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/67; E06B3/6707
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
165 words
A MULTI-PANE BUILDING PANEL COMPRISING IN COMBINATION: A. FIRST AND SECOND GLASS PANES EACH HAVING A THICKNESS SO AS TO BE SELF-SUPPORTING IN ITS HORIZONTAL POSITION WHEN SUPPORTED AT ITS EDGES ONLY, SAID PANES BEING DISPOSED IN ESSENTIALLY PARALLEL FACE-TO-FACE RELATIONSHIP WITH EACH OTHER WITH AN UNDIVIDED SPACE BETWEEN SAID PANES, B. SAID FIRST AND SECOND GLASS PANES BEING HELD TOGETHER RESILIENTLY ADJACENT THEIR EDGES, C. THE ADJACENT PARALLEL FACES OF SAID FIRST AND SECOND GLASS PANES BEING SPACED LESS THAN 2 MILLIMETERS FROM EACH OTHER BY AIR, D. AT LEAST ONE OTHER GLASS PANE, C. MEANS FOR SPACING SAID AT LEAST ONE OTHER GLASS PANE IN PARALLEL FACE-TO-FACE RELATIONSHIP WITH SAID FIRST AND SECOND PANES, F. SAID AT LEAST ONE OTHER GLASS PANE BEING SPACED FROM THE CLOSEST FACE OF SAID FIRST AND SECOND GLASS PANES BY A DISTANCE CONSIDERABLY GREATER THAN 2 MILLIMETERS BY AIR THEREBY SECURING, WITHOUT APPRECIABLE INCREASING THE OVERALL THICKNESS, A HEAT INSULATING FUILDING PANEL HAVING GREATLY IMPROVED SOUND-INSULATING PROPERTIES.
Claim 2
Dependent Claim
165 words
A MULTI-PANE BUILDING PANEL COMPRISING IN COMBINATION: A. FIRST AND SECOND GLASS PANES EACH HAVING A THICKNESS SO AS TO BE SELF-SUPPORTING IN ITS HORIZONTAL POSITION WHEN SUPPORTED AT ITS EDGES ONLY, SAID PANES BEING DISPOSED IN ESSENTIALLY PARALLEL FACE-TO-FACE RELATIONSHIP WITH EACH OTHER WITH AN UNDIVIDED SPACE BETWEEN SAID PANES, B. SAID FIRST AND SECOND GLASS PANES BEING HELD TOGETHER RESILIENTLY ADJACENT THEIR EDGES, C. THE ADJACENT PARALLEL FACES OF SAID FIRST AND SECOND GLASS PANES BEING SPACED LESS THAN 2 MILLIMETERS FROM EACH OTHER BY AIR, D. AT LEAST ONE OTHER GLASS PANE, C. MEANS FOR SPACING SAID AT LEAST ONE OTHER GLASS PANE IN PARALLEL FACE-TO-FACE RELATIONSHIP WITH SAID FIRST AND SECOND PANES, F. SAID AT LEAST ONE OTHER GLASS PANE BEING SPACED FROM THE CLOSEST FACE OF SAID FIRST AND SECOND GLASS PANES BY A DISTANCE CONSIDERABLY GREATER THAN 2 MILLIMETERS BY AIR THEREBY SECURING, WITHOUT APPRECIABLE INCREASING THE OVERALL THICKNESS, A HEAT INSULATING FUILDING PANEL HAVING GREATLY IMPROVED SOUND-INSULATING PROPERTIES.
Claim 3
Dependent Claim
34 words
A panel according to claim 1 wherein said first and second panes are held together by a continuous string of elastic material which hermetically seals the gas space between said first and second panes.
Claim 4
Dependent Claim
33 words
A panel according to claim 1 wherein said at least one other pane is spaced from the closest face of said first and second panes by a distance of at least 20 millimeters.
Claim 5
Dependent Claim
49 words
A panel according to claim 1 wherein said at least one other pane comprises third and fourth panes that a. are disposed in essentially parallel face-to-face relationship with each other b. are held together resiliently adjacent their edges and c. are spaced less than 2 millimeters from each other.
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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |