US2628918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sizing agents
Assignee: Monsanto Chemicals Ltd
•
Filing: 1952-05-06
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Granted: 1953-02-17
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Expires: 1972-05-06
Abstract
No abstract record available.
Inventors
- 👤 William S Wilson
- 👤 Albert H Bump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:12
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
A PAPER SIZING ADJUNCT CONSISTING OF AN AQUEOUS DISPERSION OF THE UNESTERIFIED REACTION PRODUCT OF ONE-QUARTER TO ONE MOL OF AN ORGANIC COMPOUND OF ACIDIC CHARACTER CONTAINING A
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) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |