Patent US3072225A successfully refreshed from Google Patents.
US3072225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Honeycomb sandwich structure
Assignee: Solar Aircraft Co
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Filing: 1958-04-14
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Granted: 1963-01-08
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Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 George D Cremer
- 👤 John V Long
- 👤 Frank J Filippi
- 👤 Edmund T Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:23
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/36; E04C2/365; B; B21; B21D; B21D47/00; B23; B23K; B23K1/00; B23K1/0008; B23K1/0014; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12104; Y10T428/12111; Y10T428/12229; Y10T428/12271; Y10T428/12278; Y10T428/1234; Y10T428/12347; Y10T428/12458; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A COMPOSITE ALL METAL STRUCTURE COMPRISING LAYERS OF THIN SHEET MATERIAL AND AT LEAST ONE THIN WALLED HONEYCOMB CELL CORE STRUCTURE, SAID HONEYCOMB CELL STRUCTURE HAVING ADJACENT PORTIONS WITH DIFFERENT MASS DENSITY CONFIGURATION AND HAVING CELL STRUCTURE ARRANGED WITH THE AXIS OF THE HONEYCOMB CELLS SUBSTANTIALLY PERPENDICULAR TO THE SHEET MATERIAL AND WITH THE END EDGES OF THE CORE CELL WALLS ABUTTING ADJACENT SURFACES OF SAID SHEET MATERIAL IN SUBSTANTIALLY CONTINUOUS LINE CONTACT, AND FUSIBLE COHESIVE BONDING MATERIAL INTEGRALLY CONNECTING SUBSTANTIALLY THE ENTIRE EXTENT OF THE EDGES OF THE THIN HONEYCOMB CELL WALLS WITH THE ADJACENT SURFACE OF SAID THIN SHEET MATERIAL ABUTTED BY SAID EDGES, SAID THIN SHEET MATERIAL CONSISTING OF OUTER FACE SHEETS WITH ADDED SHEET INSERTS BONDED BETWEEN THE FACE SHEETS AND CORE CELL EDGES AT PORTIONS OF CORE WITH DIFFERENT MASS DENSITY.
Claim 2
Dependent Claim
136 words
A COMPOSITE ALL METAL STRUCTURE COMPRISING LAYERS OF THIN SHEET MATERIAL AND AT LEAST ONE THIN WALLED HONEYCOMB CELL CORE STRUCTURE, SAID HONEYCOMB CELL STRUCTURE HAVING ADJACENT PORTIONS WITH DIFFERENT MASS DENSITY CONFIGURATION AND HAVING CELL STRUCTURE ARRANGED WITH THE AXIS OF THE HONEYCOMB CELLS SUBSTANTIALLY PERPENDICULAR TO THE SHEET MATERIAL AND WITH THE END EDGES OF THE CORE CELL WALLS ABUTTING ADJACENT SURFACES OF SAID SHEET MATERIAL IN SUBSTANTIALLY CONTINUOUS LINE CONTACT, AND FUSIBLE COHESIVE BONDING MATERIAL INTEGRALLY CONNECTING SUBSTANTIALLY THE ENTIRE EXTENT OF THE EDGES OF THE THIN HONEYCOMB CELL WALLS WITH THE ADJACENT SURFACE OF SAID THIN SHEET MATERIAL ABUTTED BY SAID EDGES, SAID THIN SHEET MATERIAL CONSISTING OF OUTER FACE SHEETS WITH ADDED SHEET INSERTS BONDED BETWEEN THE FACE SHEETS AND CORE CELL EDGES AT PORTIONS OF CORE WITH DIFFERENT MASS DENSITY.
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |