Patent US3298987A successfully refreshed from Google Patents.
US3298987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated fibrous web and coating composition therefor
Assignee: Cumberland Chemical Corp
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Filing: 1963-12-31
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Granted: 1967-01-17
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Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 George P Colgan
- 👤 Joseph J Latimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:40
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/60; C; C08; C08L; C08L29/00; C08L29/02; C08L29/04; D21H19/58; C08L21/00; C08L21/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31931; Y10T428/31935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN AQUEOUS COATING COMPOSITION FOR APPLICATION TO A PAPER WEB COMPRISING POLYVINYL ALCOHOL, A SYNTHETIC POLYMER LATEX, GLYOXAL AND A MINERAL CLAY FILLER, THE SOLIDS CONTENTS OF SAID COMPOSITION BEING 35 TO 70* AND, PER 100 PARTS BY WEIGHT OF SAID MINERAL FILLER, THE POLYVINYL ALCOHOL BEING PRESENT IN THE AMOUNT OF 3.5 TO 6, SAID SYNTHETIC POLYMER BEING PRESENT IN THE AMOUNT 7 TO 11 PARTS, AND SAID GLYOXAL BEING PRESENT IN THE AMOUNT OF 0.5 TO 1.5 PARTS, SAID POLYVINYL ALCOHOL BEING PRESENT IN AN AMOUNT WHICH IS AT LEAST ONE-HALF THE AMOUNT OF SAID SYNTHETIC POLYMER, SAID SYNTHETIC POLYMER BEING SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF LOWER ALKYL ACRYLIC ESTERS, POLYMERS OF VINYL ACETATE, AND COPOLYMERS OF BUTADIENE-STYRENE CONTAINING AT LEAST 25% STYRENE.
Claim 2
Dependent Claim
128 words
AN AQUEOUS COATING COMPOSITION FOR APPLICATION TO A PAPER WEB COMPRISING POLYVINYL ALCOHOL, A SYNTHETIC POLYMER LATEX, GLYOXAL AND A MINERAL CLAY FILLER, THE SOLIDS CONTENTS OF SAID COMPOSITION BEING 35 TO 70* AND, PER 100 PARTS BY WEIGHT OF SAID MINERAL FILLER, THE POLYVINYL ALCOHOL BEING PRESENT IN THE AMOUNT OF 3.5 TO 6, SAID SYNTHETIC POLYMER BEING PRESENT IN THE AMOUNT 7 TO 11 PARTS, AND SAID GLYOXAL BEING PRESENT IN THE AMOUNT OF 0.5 TO 1.5 PARTS, SAID POLYVINYL ALCOHOL BEING PRESENT IN AN AMOUNT WHICH IS AT LEAST ONE-HALF THE AMOUNT OF SAID SYNTHETIC POLYMER, SAID SYNTHETIC POLYMER BEING SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF LOWER ALKYL ACRYLIC ESTERS, POLYMERS OF VINYL ACETATE, AND COPOLYMERS OF BUTADIENE-STYRENE CONTAINING AT LEAST 25% STYRENE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |