US2653870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-strength paper and method of making
Assignee: Individual
•
Filing: 1949-10-22
•
Granted: 1953-09-29
•
Expires: 1969-10-22
Abstract
No abstract record available.
Inventors
- 👤 Richard P Kast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
D; D21; D21H; D21H11/00; D21H11/12; D21H23/00; D21H23/02; D21H23/04; D21H23/06; D21H23/14; D21H23/18; D21H23/22; D21H23/24; D21H23/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AS A NEW ARTICLE OF MANUFACTURE, A PAPER PRODUCT COMPRISING A MIXTURE OF SHORT WOOD PULP FIBERS AND LONG RAW MANILA TOW FIBERS WHILE ARE BOUND TOGETHER BY A LATEX BINDER, SAID SHORT WOOD FIBERS COMPRISING ABOUT 85% OF THE TOTAL FIBER CONTENT AND SAID LONG RAW TOW FIBERS COMPRISING ABOUT 15% OF THE FIBROUS MASS, SAID SHORT FIBERS CONSISTING OF FIBERS OF A SUBSTANTIALLY UNIFORM LENGTH AND ON THE ORDER OF A FRACTION OF AN INCH AND SAID LONG FIBERS CONSISTING OF FIBERS WHICH ARE OF A SUBSTANTIALLY UNIFORM LENGTH AND ON THE ORDER OF ONE INCH IN LENGTH AND OF A DIAMETER GREATER THAN SAID SHORT FIBERS, SAID LATEX BOUND FIBROUS MIXTURE FORMING A PAPER WHICH IS CHARACTERIZED BY EXTRAORDINARY STRENGTH WHICH IS SUBSTANTIALLY BEYOND THAT OF ORDINARY PAPERS.
Claim 2
Dependent Claim
131 words
AS A NEW ARTICLE OF MANUFACTURE, A PAPER PRODUCT COMPRISING A MIXTURE OF SHORT WOOD PULP FIBERS AND LONG RAW MANILA TOW FIBERS WHILE ARE BOUND TOGETHER BY A LATEX BINDER, SAID SHORT WOOD FIBERS COMPRISING ABOUT 85% OF THE TOTAL FIBER CONTENT AND SAID LONG RAW TOW FIBERS COMPRISING ABOUT 15% OF THE FIBROUS MASS, SAID SHORT FIBERS CONSISTING OF FIBERS OF A SUBSTANTIALLY UNIFORM LENGTH AND ON THE ORDER OF A FRACTION OF AN INCH AND SAID LONG FIBERS CONSISTING OF FIBERS WHICH ARE OF A SUBSTANTIALLY UNIFORM LENGTH AND ON THE ORDER OF ONE INCH IN LENGTH AND OF A DIAMETER GREATER THAN SAID SHORT FIBERS, SAID LATEX BOUND FIBROUS MIXTURE FORMING A PAPER WHICH IS CHARACTERIZED BY EXTRAORDINARY STRENGTH WHICH IS SUBSTANTIALLY BEYOND THAT OF ORDINARY PAPERS.
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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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |