Patent US3018209A successfully refreshed from Google Patents.
US3018209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel with cellular inside structure
Assignee: Individual
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Filing: 1958-01-15
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Granted: 1962-01-23
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Expires: 1978-01-15
Abstract
No abstract record available.
Inventors
- 👤 Dijksterhuis Fokko
- 👤 Dijksterhuis Heertjen Ubbes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:00
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/38; B65D65/40; B65D65/406; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1026; Y10T156/1052; Y10T156/1062; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24273; Y10T428/24281; Y10T428/24322; Y10T428/24331; Y10T428/24479; Y10T428/24562; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982; Y10T428/31993
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A PANEL STRUCTURE COMPRISING THREE SANDWICHED CARDBOARD SHEETS; A MIDDLE SHEET OF SAID SANDWICH HAVING A PLURALITY OF TONGUES PROJECTING SUBSTANTIALLY PERPENDICULARLY THEREFROM; SAID TONGUES BEING FORMED FROM A PLURALITY OF H-SHAPED INCISIONS IN SAID MIDDLE SHEET AND ORIENTED IN A PATTERN SUCH THAT THE CONNECTING BEAM OF ANY H-SHAPED INCISIONS IS ALWAYS SUBSTANTIALLY PERPENDICULAR TO CONNECTING BEAMS OF ADJACENT H-SHAPED INCISIONS; A FIRST OUTSIDE SHEET OF SAID SANDWICH BEING ADHESIVELY SECURED TO THE ENDS OF SAID PROJECTING TONGUES; AND A SECOND OUTSIDE SHEET OF SAID SANDWICH BEING SECURED TO A SIDE OF SAID MIDDLE SHEET OPPOSITE SAID PROJECTING TONGUES.
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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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |