US3676184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for controlling varying liquid penetration of a continuous paper web
Assignee: Combined Paper Mills Inc
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Filing: 1969-08-22
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Granted: 1972-07-11
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Expires: 1989-08-22
Abstract
Abstract A METHOD FOR CONTROLLING COATING LIQUID PENETRATION INTO THE SUBSTRATE OF A CONTINOUS WEB WHICH INCLUDES APPLICATION OF A BARRIER LIQUID TO THE FIRST SIDE OF THE WEB PRIOR TO THE TIME THE COATING LIQUID IS APPLIED TO THE SECOND SIDE OF THE WEB.
Inventors
- 👤 Walter E Spearin
- 👤 Harold S Vanderhei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:48
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/70; D21H5/00; D21H5/0005; D21H5/005; D21H23/32; D21H23/42
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |