Patent US2725307A successfully refreshed from Google Patents.
US2725307A
Expired / Lapsed
US
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Process of finishing mineral-adhesive coated paper
Assignee: Gardner Board and Carton Co
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Filing: 1951-09-26
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Granted: 1955-11-29
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Expires: 1971-09-26
Abstract
No abstract record available.
Inventors
- 👤 Brainard E Sooy
- 👤 Harry C Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:53
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/02; D21H25/08; D21H25/12; D21H25/14; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS OF PRODUCING WATER FINISHES ON WEBS OF PAPER OR PAPERBOARD COATED WITH A MINERAL-ADHESIVE COATING, THE ADHESIVE OF WHICH IS A MINERAL CHOSEN FROM A CLASS CONSISTING OF AMYLACEOUS AND PROTENACEOUS ADHESIVES AND IS IN A WATER-SOFTENABLE CONDITION, WHICH COMPRISES PASSING SAID WEBS THROUGH A STACK OF METALLIC CYLINDER ROLLS AND APPLYING TO THE CALENDER ROLLS ENGAGED BY THE COATED SURFACE OF SAID WEBS A WET SOLUTION OF AN ORGANIC, HIGHLY VOLATILE LIQUID CAPABLE OF DIMINSHING THE RATE OF SOLUBILITY IN SAID WATER OF THE ADHESIVE OF SAID MINERAL-ADHESIVE COATING.
Claim 2
Dependent Claim
92 words
A PROCESS OF PRODUCING WATER FINISHES ON WEBS OF PAPER OR PAPERBOARD COATED WITH A MINERAL-ADHESIVE COATING, THE ADHESIVE OF WHICH IS A MINERAL CHOSEN FROM A CLASS CONSISTING OF AMYLACEOUS AND PROTENACEOUS ADHESIVES AND IS IN A WATER-SOFTENABLE CONDITION, WHICH COMPRISES PASSING SAID WEBS THROUGH A STACK OF METALLIC CYLINDER ROLLS AND APPLYING TO THE CALENDER ROLLS ENGAGED BY THE COATED SURFACE OF SAID WEBS A WET SOLUTION OF AN ORGANIC, HIGHLY VOLATILE LIQUID CAPABLE OF DIMINSHING THE RATE OF SOLUBILITY IN SAID WATER OF THE ADHESIVE OF SAID MINERAL-ADHESIVE COATING.
References Cited (Backward Citations)
US1725699A
Cited
US2003065A
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US2088893A
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US2293278A
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US2304818A
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US2331922A
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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) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |