US3672950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesively laminated cellulosic product
Assignee: International Paper Co
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Filing: 1970-01-12
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Granted: 1972-06-27
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Expires: 1990-01-12
Abstract
Abstract A LAMINATED TISSUE PRODUCT IS FORMED FROM WEBS BONDED IN SUPERPOSED RELATION EMPLOYING PATTERNED LINES OF BONDING DELINEATING SUBSTANTIAL UNBONDED REGIONS. THE WEBS ARE MAINTAINED OUT OF INTIMATE CONTACT OVER SUBSTANTIAL PORTIONS OF THESE UNBONDED REGIONS TO PROVIDE A QUILTED OR CUSHIONED EFFECT. THIS MAY BE ACHIEVED BY EMBOSSING A NUMBER OF PROTUBERANCES ON AT LEAST ONE WEB TO FACE THE OTHER AND KEEP THE WEB APART. ALTERNATELY, OR IN ADDITION, THE WEBS MAY BE JOINED UNDER DIFFERENT RESPECTIVE TENSIONS SO THAT, UPON RELAXING ONE WEB IS OF GREATER AREA THAN THE OTHER.
Inventors
- 👤 James A Murphy
- 👤 Stirling Robert Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:23
CPC Classifications
B; B32; B32B; B32B29/00; B32B29/002; B32B29/005; B31; B31D; B31D1/00; B31D1/04; B32B37/00; B32B37/12; B32B37/1284; B32B37/1292; B32B38/00; B32B38/06; B32B7/00; B32B7/04; B32B7/12; B32B7/14; B32B38/0012; B32B2038/0028; B32B2555/00; B32B2555/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/24463; Y10T428/24802; Y10T428/24826; Y10T428/24934; Y10T428/27; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936
Claims Analysis
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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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |