US2999788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic polymer fibrid paper
Assignee: EIDP Inc
•
Filing: 1959-01-22
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Granted: 1961-09-12
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Expires: 1979-01-22
Abstract
No abstract record available.
Inventors
- 👤 Morgan Paul Winthrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:36
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H5/20; D01; D01D; D01D5/00; D01D5/04; D01D5/06; D01D5/11; Y; Y10; Y10S; Y10S264/00; Y10S264/08; Y10S264/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A PULP COMPRISING A PLURALITY OF SUPPLE, WHOLLY SYNTHETIC POLYMERIC PARTICLES HAVING ONE DIMENSION OF MINOR MAGNITUDE RELATIVE TO THEIR LARGEST DIMENSION, A HIGH SURFACE AREA AND PROCESSING (A) AN ABILITY TO FORM A WATERLEAF HAVING A COUCHED WET TENACITY OF AT LEAST ABOUT 0.034 LB./IN./OZ./SG. YD. WHEN THE SAID PULP IS DEPOSITED FROM A LIQUID SUSPENSION UPON A FORAMINOUS SURFACE, WHICH WATERLEAF, WHEN DREID AT A TEMPERATURE BELOW ABOUT 50*C., HAS A DRY TENACITY AT LEAST EQUAL TO ITS COUCHED WET TENACITY AND (B) AN ABILITY, WHEN A PLURALITY OF THE SAID PARTICLES IS DEPOSITED CONCOMITANTLY WITH STAPLE FIBRES FROM A LIQUID SUSPENSION UPON A FORAMINOUS SURFACE, TO BOND THE SAID FIBERS BY PHYSICAL ENTWINEMENT OF THE SAID PARTICLES WITH THE SAID FIBERS TO GIVE A COMPOSITE WATERLEAF WITH A WET TENACITY OF AT LEAST ABOUT 0.034 LB./IN./OZ./SQ. YD.
Claim 2
Dependent Claim
140 words
A PULP COMPRISING A PLURALITY OF SUPPLE, WHOLLY SYNTHETIC POLYMERIC PARTICLES HAVING ONE DIMENSION OF MINOR MAGNITUDE RELATIVE TO THEIR LARGEST DIMENSION, A HIGH SURFACE AREA AND PROCESSING (A) AN ABILITY TO FORM A WATERLEAF HAVING A COUCHED WET TENACITY OF AT LEAST ABOUT 0.034 LB./IN./OZ./SG. YD. WHEN THE SAID PULP IS DEPOSITED FROM A LIQUID SUSPENSION UPON A FORAMINOUS SURFACE, WHICH WATERLEAF, WHEN DREID AT A TEMPERATURE BELOW ABOUT 50*C., HAS A DRY TENACITY AT LEAST EQUAL TO ITS COUCHED WET TENACITY AND (B) AN ABILITY, WHEN A PLURALITY OF THE SAID PARTICLES IS DEPOSITED CONCOMITANTLY WITH STAPLE FIBRES FROM A LIQUID SUSPENSION UPON A FORAMINOUS SURFACE, TO BOND THE SAID FIBERS BY PHYSICAL ENTWINEMENT OF THE SAID PARTICLES WITH THE SAID FIBERS TO GIVE A COMPOSITE WATERLEAF WITH A WET TENACITY OF AT LEAST ABOUT 0.034 LB./IN./OZ./SQ. YD.
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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) | 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 |