US2778749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper products and manufacture thereof
Assignee: Monsanto Chemicals Ltd
•
Filing: 1952-12-22
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Granted: 1957-01-22
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Expires: 1972-12-22
Abstract
No abstract record available.
Inventors
- 👤 Jr John P Bainbridge
- 👤 Edward S Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:11
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A CELLULOSIC FIBER PAPER PRODUCT COMPRISING A SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC DISULFONIC ACIDS HAVING AT LEAST 10 CARBON ATOMS, HALOGENCONTAINING ALIPHATIC DISULFONIC ACIDS HAVING AT LEAST 10 CARBON ATOMS AND CONTAINING UP TO 2 HALOGEN ATOMS WHICH ARE ATTACHED TO A CARBON ATOM OF SAID ACID AND WATERSOLUBLE SALTS OF SAID COMPOUNDS, SAID SUBSTANCE BEING PRESENT IN AN AMOUNT SUFFICIENT TO SOFTEN THE SURFACE OF SAID PAPER PRODUCT.
Claim 2
Dependent Claim
72 words
A CELLULOSIC FIBER PAPER PRODUCT COMPRISING A SUBSTANCE SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC DISULFONIC ACIDS HAVING AT LEAST 10 CARBON ATOMS, HALOGENCONTAINING ALIPHATIC DISULFONIC ACIDS HAVING AT LEAST 10 CARBON ATOMS AND CONTAINING UP TO 2 HALOGEN ATOMS WHICH ARE ATTACHED TO A CARBON ATOM OF SAID ACID AND WATERSOLUBLE SALTS OF SAID COMPOUNDS, SAID SUBSTANCE BEING PRESENT IN AN AMOUNT SUFFICIENT TO SOFTEN THE SURFACE OF SAID PAPER PRODUCT.
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) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |