US2772137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood stain method of increased lightfastness
Assignee: Interchemical Corp
•
Filing: 1953-05-06
•
Granted: 1956-11-27
•
Expires: 1973-05-06
Abstract
No abstract record available.
Inventors
- 👤 Weber Ira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:05
CPC Classifications
B; B27; B27K; B27K5/00; B27K5/02; B27K3/00; B27K3/16; B27K3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN THE METHOD OF STAINING WOOD CONSISTING OF APPLYING TO THE WOOD A SOLUTION OF THE ALKALI SALT OF AT LEAST ONE SULFONIC ACID-AZO DYESTUFF IN A PENETRANT VEHICLE CONSISTING OF A MIXTURE OF ETHYL ETHER OF ETHYLENE GLYCOL AND METHANOL, THE IMPROVEMENT WHICH CONSISTS IN APPLYING TO THE STAINED SURFACE A SOLUTION CONSISTING OF 5 TO 10% BY WEIGHT, OF A HEAVY METAL SALT OF THE GROUP CONSISTING OF THE SALTS OF BARIUM, CALCIUM, STRONTIUM, MANGANESE AND ALUMINUM, DISSOLVED IN A SOLVENT CONSISTING OF A MIXTURE OF ETHYL ETHER OF ETHYLENE GLYCOL AND METHANOL.
Claim 2
Dependent Claim
95 words
IN THE METHOD OF STAINING WOOD CONSISTING OF APPLYING TO THE WOOD A SOLUTION OF THE ALKALI SALT OF AT LEAST ONE SULFONIC ACID-AZO DYESTUFF IN A PENETRANT VEHICLE CONSISTING OF A MIXTURE OF ETHYL ETHER OF ETHYLENE GLYCOL AND METHANOL, THE IMPROVEMENT WHICH CONSISTS IN APPLYING TO THE STAINED SURFACE A SOLUTION CONSISTING OF 5 TO 10% BY WEIGHT, OF A HEAVY METAL SALT OF THE GROUP CONSISTING OF THE SALTS OF BARIUM, CALCIUM, STRONTIUM, MANGANESE AND ALUMINUM, DISSOLVED IN A SOLVENT CONSISTING OF A MIXTURE OF ETHYL ETHER OF ETHYLENE GLYCOL AND METHANOL.
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) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |