US2999787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine glazed paper
Assignee: Thilmany Pulp and Paper Co
•
Filing: 1957-10-04
•
Granted: 1961-09-12
•
Expires: 1977-10-04
Abstract
No abstract record available.
Inventors
- 👤 Martin L Downs
- 👤 Ralph A Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PROCESS FOR THE MANUFACTURE OF MACHINE GLAZED TYPE PAPER COMPRISING THE STEPS OF FORMING A BASE SHEET HAVING AN APPARENT DENSITY OF LESS THAN ABOUT 11 POUNDS PER REAM PER MIL OF THICKNESS, SAID BASE SHEET BEING LEVELED AND HAVING A GLOSSY SURFACE, SAID BASE SHEET BEING DRIED TO SUBSTANTIAL NORMAL SHEET DRYNESS TO THEREBY MAINTAIN THE LEVELED SURFACE, PREPARING AN AQUEOUS MIXTURE INCLUDING A HYDROPHILIC COOLOID WHICH MIXTURE PROVIDES A TRANSPARENT FILM, SAID HYDROPHILLIC COLLOID MIXTURE HAVING WATER HOLDING PROPERTIES HIGHER THAN ABOUT 3 SECONDS, SETTING SAID COLLOID ON THE SAID GLOSSY SURFACE OF SAID BASE SHEET WITHOUT SUBSTANTIAL PENETRATION OF SAID BASE SHEET, AND DRYING THE COMBINED SHEET WITH THE COLLOID CONTACTING A SMOOTH DRIER SURFACE WHEREBY MACHINE GLAZED PAPER HAVING IMPROVED GLOSS IS PROVIDED.
Claim 2
Dependent Claim
128 words
A PROCESS FOR THE MANUFACTURE OF MACHINE GLAZED TYPE PAPER COMPRISING THE STEPS OF FORMING A BASE SHEET HAVING AN APPARENT DENSITY OF LESS THAN ABOUT 11 POUNDS PER REAM PER MIL OF THICKNESS, SAID BASE SHEET BEING LEVELED AND HAVING A GLOSSY SURFACE, SAID BASE SHEET BEING DRIED TO SUBSTANTIAL NORMAL SHEET DRYNESS TO THEREBY MAINTAIN THE LEVELED SURFACE, PREPARING AN AQUEOUS MIXTURE INCLUDING A HYDROPHILIC COOLOID WHICH MIXTURE PROVIDES A TRANSPARENT FILM, SAID HYDROPHILLIC COLLOID MIXTURE HAVING WATER HOLDING PROPERTIES HIGHER THAN ABOUT 3 SECONDS, SETTING SAID COLLOID ON THE SAID GLOSSY SURFACE OF SAID BASE SHEET WITHOUT SUBSTANTIAL PENETRATION OF SAID BASE SHEET, AND DRYING THE COMBINED SHEET WITH THE COLLOID CONTACTING A SMOOTH DRIER SURFACE WHEREBY MACHINE GLAZED PAPER HAVING IMPROVED GLOSS IS PROVIDED.
References Cited (Backward Citations)
US1753565A
Cited
GB297098A
Cited
US1992996A
Cited
US2184312A
Cited
US2227494A
Cited
US2313497A
Cited
US2656286A
Cited
US2635972A
Cited
US2633430A
Cited
US2711156A
Cited
US2930106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |