US2799580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the disincrustation of fibrous vegetable materials
Assignee: MH Treadwell Co Inc
•
Filing: 1953-11-25
•
Granted: 1957-07-16
•
Expires: 1973-11-25
Abstract
No abstract record available.
Inventors
- 👤 Rys Ladislav Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:12
CPC Classifications
D; D21; D21C; D21C3/00; D21C3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR THE DISINCRUSTATION OF WOOD CHIPS, WHICH COMPRISES SOAKING THE WOOD CHIPS IN A CHEMICALLY STABLE AQUEOUS SOLUTION OF AN ALKALI METAL CHLORATE UNTIL THE CHIPS ARE SUBSTANTIALLY COMPLETELY IMPREGNATED WITH SAID CHLORATE, REMOVING THE PORTION OF SAID AQUEOUS SOLUTION OF ALKALI METAL CHLORATE WHICH HAS NOT PENETRATED THE WOOD CHIPSS AND THEREAFTER TREATING THE IMPREGNATED CHIPS WITH HYDROGEN CHLORIDE GAS TO REACT WITH THE SAID CHLORATE WITHIN THE CHIPS AND EFFEDCT THE DESIRED DISINCRUSTATION OF THE WOOD CHIPS.
Claim 2
Dependent Claim
81 words
A PROCESS FOR THE DISINCRUSTATION OF WOOD CHIPS, WHICH COMPRISES SOAKING THE WOOD CHIPS IN A CHEMICALLY STABLE AQUEOUS SOLUTION OF AN ALKALI METAL CHLORATE UNTIL THE CHIPS ARE SUBSTANTIALLY COMPLETELY IMPREGNATED WITH SAID CHLORATE, REMOVING THE PORTION OF SAID AQUEOUS SOLUTION OF ALKALI METAL CHLORATE WHICH HAS NOT PENETRATED THE WOOD CHIPSS AND THEREAFTER TREATING THE IMPREGNATED CHIPS WITH HYDROGEN CHLORIDE GAS TO REACT WITH THE SAID CHLORATE WITHIN THE CHIPS AND EFFEDCT THE DESIRED DISINCRUSTATION OF THE WOOD CHIPS.
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) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |