US2838425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of protecting cellulose fibers against microorganisms and fungi and the resulting product
Assignee: Saul and Co
•
Filing: 1953-11-23
•
Granted: 1958-06-10
•
Expires: 1973-11-23
Abstract
No abstract record available.
Inventors
- 👤 Lutz Karl
- 👤 Hemmi Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:11
CPC Classifications
D; D06; D06M; D06M16/00; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD OF PROTECTING CELLULOSE FIBERS AGAINST MICROORGANISMS AND MOLDS, WHICH COMPRISES IMPREGNATING THE SAID FIBERS WITH AN AN IMPREGNATING CONSITING OF THE PRODUCT OF THE REACTION OF CHLORINATED PHENOL WHICH CONTAINS FREE PHENLOIC HYDROXYL AND HAS FUNGICIDAL OR BACWHICH HAS AFFINITY FOR CELLULOSE FIBERS AND IS SELECTED FROM THE GROUP CONSISTING OF CONDENSATION PRODUCTS OBTAINED BY (A) CONDENSING DICYANDIAMIDE WITH DIETHYLENETRIAMINE BY (A) CONDENSING DICYANAMIDE WITH DIETHYLENETRIAMINE WITH SPLITTING OFF OF AMMONIA, (B) CONDENSING DICYANDIAMIDE WITH DIETHYLENETRIAMINE WITH SPLITTING OFF OF AMMONIA AND THEN REACTING THE PRODUCT WITH BENZYL CHLOTRIAMINE WITH SPLITTING OFF OF AMMONIA AND THEN REACTING THE PRODUCT WITH FORMALDEHYDE.
Claim 2
Independent Claim
103 words
A METHOD OF PROTECTING CELLULOSE FIBERS AGAINST MICROORGANISMS AND MOLDS, WHICH COMPRISES IMPREGNATING THE SAID FIBERS WITH AN AN IMPREGNATING CONSITING OF THE PRODUCT OF THE REACTION OF CHLORINATED PHENOL WHICH CONTAINS FREE PHENLOIC HYDROXYL AND HAS FUNGICIDAL OR BACWHICH HAS AFFINITY FOR CELLULOSE FIBERS AND IS SELECTED FROM THE GROUP CONSISTING OF CONDENSATION PRODUCTS OBTAINED BY (A) CONDENSING DICYANDIAMIDE WITH DIETHYLENETRIAMINE BY (A) CONDENSING DICYANAMIDE WITH DIETHYLENETRIAMINE WITH SPLITTING OFF OF AMMONIA, (B) CONDENSING DICYANDIAMIDE WITH DIETHYLENETRIAMINE WITH SPLITTING OFF OF AMMONIA AND THEN REACTING THE PRODUCT WITH BENZYL CHLOTRIAMINE WITH SPLITTING OFF OF AMMONIA AND THEN REACTING THE PRODUCT WITH FORMALDEHYDE.
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) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |