US2683088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soft bibulous sheet
Assignee: Wyeth Holdings LLC
•
Filing: 1952-06-10
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Granted: 1954-07-06
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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
2026-11-07 06:52
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/62; D21H17/03; D21H17/05; D21H17/07; D21H21/00; D21H21/14; D21H21/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A SOFT BIBULOUS SHEET OF FELTED CELLULOSIC FIBERS HAVING UNIFORMLY ABSORBED THEREON BETWEEN 0.1% AND 5.0% OF THEIR WEIGHT OF A WATER-DISPERSIBLE, WATER-INSOLUBLE ALKYLENE OXIDE ADDUCT OF A SHORT CHAIN HYDROXYALKYL AMIDE 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
55 words
A SOFT BIBULOUS SHEET OF FELTED CELLULOSIC FIBERS HAVING UNIFORMLY ABSORBED THEREON BETWEEN 0.1% AND 5.0% OF THEIR WEIGHT OF A WATER-DISPERSIBLE, WATER-INSOLUBLE ALKYLENE OXIDE ADDUCT OF A SHORT CHAIN HYDROXYALKYL AMIDE 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 |