US2763579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for impregnating wood with an insecticide and the resultant product
Assignee: Evonik Operations GmbH
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Filing: 1953-03-05
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Granted: 1956-09-18
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Expires: 1973-03-05
Abstract
No abstract record available.
Inventors
- 👤 Schulenburg Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:09
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/02; B27K3/15; C; C08; C08L; C08L97/00; C08L97/02; C08K; C08K3/00; C08K3/30; C08L61/00; C08L61/20; C08L61/22; C08L61/24; C08L61/26; C08L61/28; Y; Y10; Y10T; Y10T428/00; Y10T428/4935; Y10T428/662
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR RENDERING WOOD MORE RESISTANT TO ATTACK BY INSECTS AND FUNGI WHICH COMPRISES IMPREGNATING WOOD WITH A SOLUTION OF AN INCOMPLETELY CONDENSED RESIN OBATAINED BY CONDENSATION OF AT LEAST ONE ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, PARAFORMALDEHYDE AND ACROLEIN WITH A CONDENSIBLE NITROGEN CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF UREA, THIOUREA, GUANIDINE, DICYANDIAMIDE AND MELAMINE AND WITH A SOLUTION OF THIOCYANATE OF ZINC.
Claim 2
Dependent Claim
69 words
A PROCESS FOR RENDERING WOOD MORE RESISTANT TO ATTACK BY INSECTS AND FUNGI WHICH COMPRISES IMPREGNATING WOOD WITH A SOLUTION OF AN INCOMPLETELY CONDENSED RESIN OBATAINED BY CONDENSATION OF AT LEAST ONE ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, PARAFORMALDEHYDE AND ACROLEIN WITH A CONDENSIBLE NITROGEN CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF UREA, THIOUREA, GUANIDINE, DICYANDIAMIDE AND MELAMINE AND WITH A SOLUTION OF THIOCYANATE OF ZINC.
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) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |