Patent US3700518A successfully refreshed from Google Patents.
US3700518A
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Method for manufacturing a composite corrugated paper board
Assignee: Honshu Paper Co Ltd
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Filing: 1971-03-17
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Granted: 1972-10-24
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Expires: 1991-03-17
Abstract
Abstract There are described a method for producing a composite corrugated paper board which may be termed "X-wave type corrugated paper board" for its sectional structure and a method for manufacturing the same. The X-wave type paper board consists of two corrugated sheets of paper interposed between two liner sheets, said corrugated sheets being bonded to each other and to the liner sheets in such a disposition that the ridges of one corrugated sheet are in abutment against the ridges of the other corrugated sheet.
Inventors
- 👤 Koichiro Ohmori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:19
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/26; B31F1/28; B31F1/2813; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T156/1025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
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 |