Patent US2830916A successfully refreshed from Google Patents.
US2830916A
Expired / Lapsed
US
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Sized paper and method of making
Assignee: Kraft Inc
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Filing: 1954-09-08
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Granted: 1958-04-15
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Expires: 1974-09-08
Abstract
No abstract record available.
Inventors
- 👤 Brown Frank Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:57
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/21; D21H17/24; D21H17/28; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T428/27; Y10T428/273; Y10T428/277; Y10T428/31504; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A SIZED PAPER SHEET HAVING A NON-ADHESIVE SURFACE, SAID SHEET COMPRISING A PAPER SHEET HAVING INCORPORATED THEREWITH STARCH AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CARRAGHEEN AND CARRAGHEENIN, THE RATIO OF THE AMOUNT OF SAID MATERIAL TO THE AMOUNT OF SAID STARCH BEING IN EXCESS OF ABOUT .01:1, SAID STARCH BEING PRESENT IN AN AMOUNT OF BETWEEN 3 POUNDS AND 18 POUNDS PER REAM OF 3,000 SQUARE FEET OF SAID PAPER SHEET.
Claim 2
Dependent Claim
74 words
A SIZED PAPER SHEET HAVING A NON-ADHESIVE SURFACE, SAID SHEET COMPRISING A PAPER SHEET HAVING INCORPORATED THEREWITH STARCH AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CARRAGHEEN AND CARRAGHEENIN, THE RATIO OF THE AMOUNT OF SAID MATERIAL TO THE AMOUNT OF SAID STARCH BEING IN EXCESS OF ABOUT .01:1, SAID STARCH BEING PRESENT IN AN AMOUNT OF BETWEEN 3 POUNDS AND 18 POUNDS PER REAM OF 3,000 SQUARE FEET OF SAID PAPER SHEET.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |