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US2683089A
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Bibulous sheet
Assignee: Wyeth Holdings LLC
•
Filing: 1952-06-10
•
Granted: 1954-07-06
•
Expires: 1972-06-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter F Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:24
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/22; D21H17/00; D21H17/03; D21H17/05; D21H17/07; D21H17/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AS A NEW AND USEFUL COMPOSITION OF MATTER, A BIBULOUS SHEET OF FELTED CELLULOSIC FIBERS HAVING UNIFORMLY ADSORBED THEREON BETWEEN ABOUT 0.02% AND 3.0% OF THEIR WEIGHT OF A WATER-SOLUBLE ALKYLENE OXIDE ADDUCT OF A SHORT CHAIN HYDROXYALKYLAMIDE OF AN ACID SELECTED FROM THE GROUP OF FATTY ACIDS AND ROSIN ACIDS OF ABOUT 14 TO 22 CARBON ATOMS AND MIXTURES THEREOF.
Claim 2
Dependent Claim
61 words
AS A NEW AND USEFUL COMPOSITION OF MATTER, A BIBULOUS SHEET OF FELTED CELLULOSIC FIBERS HAVING UNIFORMLY ADSORBED THEREON BETWEEN ABOUT 0.02% AND 3.0% OF THEIR WEIGHT OF A WATER-SOLUBLE ALKYLENE OXIDE ADDUCT OF A SHORT CHAIN HYDROXYALKYLAMIDE OF AN ACID SELECTED FROM THE GROUP OF FATTY ACIDS AND ROSIN ACIDS OF ABOUT 14 TO 22 CARBON ATOMS AND MIXTURES THEREOF.
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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) | 1957-07-05 | 1958-01-04 | 1958-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-05 | 1962-01-04 | 1962-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-05 | 1966-01-04 | 1966-07-06 | $7700.00 | Window Closed / Lapsed |