US2632714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating paper web
Assignee: ROBERT GAIR CO Inc
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Filing: 1950-04-04
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Granted: 1953-03-24
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Expires: 1970-04-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Loomer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:53
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/54; D21H19/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PROCESS FOR TREATING A PAPER WEB COMPRISING THE STEP OF APPLYING AN AQUEOUS SOLUTION OF AN ALDEHYDE TO THE SURFACE OF THE WEB, THE STEP OF PASSING THE SAME THROUGH ROLLS TO SMOOTH THE SURFACE, THE STEP OF COATING THE WEB, WHILE STILL DAMP WITH SAID SOLUTION, WITH AN AQUEOUS MINERAL SUSPENSION CONTAINING AN ADHESIVE WHICH INSOLUBILIZES UNDER REACTION WITH AN ALDEHYDE, AND THE STEP OF SUBJECTING THE WEB TO THE ACTION OF FINISHING CALENDERS AND AT THE SAME TIME TREATING THE SURFACE OF THE COATING WITH A FINISHING SOLUTION.
Claim 2
Dependent Claim
91 words
A PROCESS FOR TREATING A PAPER WEB COMPRISING THE STEP OF APPLYING AN AQUEOUS SOLUTION OF AN ALDEHYDE TO THE SURFACE OF THE WEB, THE STEP OF PASSING THE SAME THROUGH ROLLS TO SMOOTH THE SURFACE, THE STEP OF COATING THE WEB, WHILE STILL DAMP WITH SAID SOLUTION, WITH AN AQUEOUS MINERAL SUSPENSION CONTAINING AN ADHESIVE WHICH INSOLUBILIZES UNDER REACTION WITH AN ALDEHYDE, AND THE STEP OF SUBJECTING THE WEB TO THE ACTION OF FINISHING CALENDERS AND AT THE SAME TIME TREATING THE SURFACE OF THE COATING WITH A FINISHING SOLUTION.
References Cited (Backward Citations)
US2123152A
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US2177580A
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US2263576A
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US2286259A
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US2369427A
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US2414858A
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US2460998A
Cited
US2515340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |