Patent US2682491A successfully refreshed from Google Patents.
US2682491A
Expired / Lapsed
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Skin for doubly curved sandwichtype panels
Assignee: Dalmo Victor Co
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Filing: 1952-02-23
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Granted: 1954-06-29
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Expires: 1972-02-23
Abstract
No abstract record available.
Inventors
- 👤 Stuart H Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:28
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/141; H01Q15/142; H01Q15/144; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T156/1043; Y10T156/1044; Y10T156/1048; Y10T156/1089; Y10T428/00; Y10T428/21; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T428/24149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A DOUBLY CURVED ARTICLE HAVING A DOUBLY CURVED HONEYCOMB CORE WITH A FACING ON EACH OF ITS OPPOSITE SIDES, EACH FACING HAVING A FIRST AND SECOND LAYER, EACH LAYER INCLUDING A PLURALITY OF THIN STRIPS ARRANGED AND SECURED IN SHINGLED FASHION TO ONE ANOTHER WITH A CONSTANT WIDTH OF EXPOSED SURFACE THROUGHOUT THE LENGTH OF EACH STRIP, THE INNERMOST LAYERS OF THE FACINGS BEING SECURED TO THE HONEYCOMB CORE, THE STRIPS OF EACH LAYER RUNNING AT AN ANGLE TO THE STRIPS OF THE IMMEDIATELY ADJACENT LAYER.
Claim 2
Dependent Claim
86 words
A DOUBLY CURVED ARTICLE HAVING A DOUBLY CURVED HONEYCOMB CORE WITH A FACING ON EACH OF ITS OPPOSITE SIDES, EACH FACING HAVING A FIRST AND SECOND LAYER, EACH LAYER INCLUDING A PLURALITY OF THIN STRIPS ARRANGED AND SECURED IN SHINGLED FASHION TO ONE ANOTHER WITH A CONSTANT WIDTH OF EXPOSED SURFACE THROUGHOUT THE LENGTH OF EACH STRIP, THE INNERMOST LAYERS OF THE FACINGS BEING SECURED TO THE HONEYCOMB CORE, THE STRIPS OF EACH LAYER RUNNING AT AN ANGLE TO THE STRIPS OF THE IMMEDIATELY ADJACENT LAYER.
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) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |