US4013474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood preservative compositions
Assignee: United States Department of the Army
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Filing: 1975-05-06
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Granted: 1977-03-22
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Expires: 1995-05-06
Abstract
Abstract Wood preservative, moisture-repellent and decay resistant compositions comprising pentachlorophenol and gamma-Aminopropyltriethoxysilane dissolved in major proportions of 2-butoxyethanol with a trace of water; and sodium pentachlorophenate with said silane in the presence of approximately equal proportions of water and 2-butoxyethanol.
Inventors
- 👤 Leonard Teitell
- 👤 Sidney H. Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:24
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/34; B27K3/50; A; A01; A01N; A01N55/00; B27K3/16; B27K3/20; B27K3/38; B27K3/40; B27K3/52
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 words
A durable decay resistant preservative formulation for use with wooden products which must withstand severe tropical humidities in excess of 18 months, said formulation consisting of: 5.0 parts by weight pentachlorophenol 10.0 parts by weight gamma-aminopropyltriethoxysilane 0.5 parts by weight water 84.5 parts by weight 2-butoxyethanol
Claim 2
Dependent Claim
46 words
A durable decay resistant preservative formulation for use with wooden products which must withstand severe tropical humidities in excess of 18 months, said formulation consisting of: 5.0 parts by weight pentachlorophenol 10.0 parts by weight gamma-aminopropyltriethoxysilane 0.5 parts by weight water 84.5 parts by weight 2-butoxyethanol
Claim 3
Dependent Claim
38 words
A durable decay resistant preservative for use with wooden products which must withstand severe tropical humidities in excess of 18 months, said composition consisting of, in parts by weight: 5.0 Sodium pentachlorophenate 10.0 Gamma-aminopropyltriethoxysilane 42.5 Water 42.5 2-Butoxyethanol
Claim 4
Dependent Claim
38 words
A durable decay resistant preservative for use with wooden products which must withstand severe tropical humidities in excess of 18 months, said composition consisting of, in parts by weight: 5.0 Sodium pentachlorophenate 10.0 Gamma-aminopropyltriethoxysilane 42.5 Water 42.5 2-Butoxyethanol
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) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |