US3105773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation of cellulosic materials
Assignee: Wyeth Holdings LLC
•
Filing: 1959-10-28
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Granted: 1963-10-01
•
Expires: 1979-10-28
Abstract
No abstract record available.
Inventors
- 👤 Frank Simon
- 👤 Donald C Wehner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:12
CPC Classifications
D; D06; D06M; D06M16/00; C; C08; C08L; C08L97/00; C08L97/02; B; B27; B27K; B27K3/00; B27K3/02; B27K3/15; B27K3/16; B27K3/32; C08L33/00; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T428/00; Y10T428/4935; Y10T428/662; Y10T442/00; Y10T442/20; Y10T442/2525
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOOD FOR PRESERVING CELLULOSIC MATERIALS WHICH CONSISTS ESSENTIALLY OF IMPREGNATING THE CELLULOSIC MATERIAL FIRST WITH AN AQUEOUS SOLUTION OF A METAL SALT SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE PESTICIDAL SALTS OF COPPER, ARSENIC, CHROMIUM, CADMIUM AND ZINC, SAID SALT BEING EMPOLYED IN PESTICIDALLY EFFECTIVE AMOUNTS AND SUBSEQUENTLY WITH AN AQUEOUS SOLUTION OF A PREFORMED ACRYLIC POLYMER OF THE FORMULA
Claim 2
Dependent Claim
61 words
A METHOOD FOR PRESERVING CELLULOSIC MATERIALS WHICH CONSISTS ESSENTIALLY OF IMPREGNATING THE CELLULOSIC MATERIAL FIRST WITH AN AQUEOUS SOLUTION OF A METAL SALT SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE PESTICIDAL SALTS OF COPPER, ARSENIC, CHROMIUM, CADMIUM AND ZINC, SAID SALT BEING EMPOLYED IN PESTICIDALLY EFFECTIVE AMOUNTS AND SUBSEQUENTLY WITH AN AQUEOUS SOLUTION OF A PREFORMED ACRYLIC POLYMER OF THE FORMULA
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |