US2850405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of increasing the immunity of cellulose to decay and treated article
Assignee: National Cylinder Gas Co
•
Filing: 1957-01-17
•
Granted: 1958-09-02
•
Expires: 1977-01-17
Abstract
No abstract record available.
Inventors
- 👤 Bottoms Robert Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:23
CPC Classifications
D; D06; D06M; D06M16/00; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T442/00; Y10T442/20; Y10T442/2525
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD FOR INCREASING THE IMMUNITY OF CELLULOSIC MATERIAL TO THE ACTION OF ORGANIC AGENTS OF DECAY ASSOCIATED WITH SOIL WHICH COMPRISES IMPREGNATING CELLULOSIC MATERIAL WITH AN AQUEOUS SOLUTION OF COPPER ACRYLATE TO DEPOSIT THEREON AN AMOUNT OF COPPER ACRYLATE EQUIVALENT TO AT LEAST 0.5% COPPER BASED ON THE WEIGHT OF THE CELLULOSIC MATERIAL TREATED, AND HEATING THE IMPREGNATED CELLULOSIC MATERIAL AT A TEMPERATURE OF ABOUT 120*C. TO ABOUT 180*C. FOR A PERIOD OF ABOUT ONE-QUARTER HOUR TO THREE HOURS.
Claim 2
Independent Claim
80 words
A METHOD FOR INCREASING THE IMMUNITY OF CELLULOSIC MATERIAL TO THE ACTION OF ORGANIC AGENTS OF DECAY ASSOCIATED WITH SOIL WHICH COMPRISES IMPREGNATING CELLULOSIC MATERIAL WITH AN AQUEOUS SOLUTION OF COPPER ACRYLATE TO DEPOSIT THEREON AN AMOUNT OF COPPER ACRYLATE EQUIVALENT TO AT LEAST 0.5% COPPER BASED ON THE WEIGHT OF THE CELLULOSIC MATERIAL TREATED, AND HEATING THE IMPREGNATED CELLULOSIC MATERIAL AT A TEMPERATURE OF ABOUT 120*C. TO ABOUT 180*C. FOR A PERIOD OF ABOUT ONE-QUARTER HOUR TO THREE HOURS.
References Cited (Backward Citations)
US1779258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |