US3697365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigid-when-wet boxboard
Assignee: Alton Box Board Co
•
Filing: 1971-02-25
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Granted: 1972-10-10
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Expires: 1991-02-25
Abstract
Abstract CORRUGATED CONTAINERBOARD OF THE TYPE ADAPTED TO BE RIGID WHEN WET HAVING AT LEAST ONE SHEET OF THE BOARD STRUCTURE IMPREGNATED WITH A MIXTURE OF RESOLE TYPE PHENOLIC RESIN AND AN ORGANO SILYL COMPOUND AND PROCEDURE FOR MAKING.
Inventors
- 👤 Abraham J Reisman
- 👤 Thomas B Wilkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:41
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/48; B; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/26; B31F1/28; B31F1/2804; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/26; Y10T428/27; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967
Claims Analysis
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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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |