US2564430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slime control
Assignee: HAMILTON LAB Inc
•
Filing: 1946-03-30
•
Granted: 1951-08-14
•
Expires: 1966-03-30
Abstract
No abstract record available.
Inventors
- 👤 Athey G Gillaspie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:25
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PROCESS OF CONTROLLING SLIME IN PULP AND PAPER MILL SYSTEMS CONTAINING UNBLEACHED SULFATE PULP WHICH COMPRISES ADDING A COMPOUND FROM THE GROUP CONSISTING OF MERCURATED BENZENE SULFONIC ACID AND ITS SOLUBLE SALTS TO AN AQUEOUS SUSPENSION OF UNBLEACHED SULFATE PULP IN AN AMOUNT SUFFICIENT TO CONTROL SLIME.
Claim 2
Dependent Claim
48 words
A PROCESS OF CONTROLLING SLIME IN PULP AND PAPER MILL SYSTEMS CONTAINING UNBLEACHED SULFATE PULP WHICH COMPRISES ADDING A COMPOUND FROM THE GROUP CONSISTING OF MERCURATED BENZENE SULFONIC ACID AND ITS SOLUBLE SALTS TO AN AQUEOUS SUSPENSION OF UNBLEACHED SULFATE PULP IN AN AMOUNT SUFFICIENT TO CONTROL SLIME.
References Cited (Backward Citations)
US2096721A
Cited
US2162014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |