Patent US4336854A successfully refreshed from Google Patents.
US3700522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making honeycomb panels
Assignee: Florida Gas Co
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Filing: 1970-12-03
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Granted: 1972-10-24
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Expires: 1990-12-03
Abstract
Abstract A HONEYCOMB SANDWICH PANEL MANUFACTURING PROCESS FOR APPLYING AN ADHESIVE TO THE EDGES OF PAPER HONEYCOMB CORE MATERIAL FOR THE APPLICATION OF FLAT SURFACES TO THE HONEYCOMB. PAPER HONEYCOMB WHICH HAS BEEN EXPANDED AND CURED IS COMPRESSED AND AN ADHESIVE IS APPLIED TO THE COMPRESSED HONEYCOMB WHICH IS THEN CAUSED TO EXPAND TO ITS EXPANDED POSITION. THE FLAT SURFACES ARE APPLIED AND PRESSED TO THE TWO EDGES OF THE EXPANDED HONEYCOMB AND THE ADHESIVE CURED FOR SECURING THE EDGE SURFACES OF THE HONEYCOMB TO THE FLAT SURFACES TO FORM THE SANDWICH PANEL.
Inventors
- 👤 Clifford L Wonderly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:18
CPC Classifications
B; B31; B31D; B31D3/00; B31D3/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |