Patent US3285774A successfully refreshed from Google Patents.
US3285774A
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Method of treating wood with an organic solvent-soluble fire retardant
Assignee: Beazer East Inc
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Filing: 1961-12-18
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Granted: 1966-11-15
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Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Irving S Goldstein
- 👤 William J Oberley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:57
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/34; B27K3/36; B27K3/02; B27K3/0278; B27K3/08; B27K3/16; B27K3/166; B27K5/00; B27K5/001; B27K5/04; B27K2240/00; B27K2240/30; Y; Y10; Y10S; Y10S428/00; Y10S428/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF TREATING WOOD WITH AN ORGANIC SOLVENTSOLUBLE FIRE RETARDANT IN AN ORGANIC SOLUTION WITHOUT ALTERING THE DIMENSIONS OF THE WOOD COMPRISING IMPREGNATING THE WOOD, UNDER WOOD IMPREGNATING PRESSURE AND AT A TEMPERATURE BELOW THE BOILING POINT OF THE SOLVENT AT SAID PRESSURE, WITH A SOLUTION CONSISTING ESSENTIALLY OF A SOLUTE SELECTED FROM THE GROUP CONSISTING OF A COMPOUND HAVING THE FORMULA:
Claim 2
Independent Claim
63 words
A METHOD OF TREATING WOOD WITH AN ORGANIC SOLVENTSOLUBLE FIRE RETARDANT IN AN ORGANIC SOLUTION WITHOUT ALTERING THE DIMENSIONS OF THE WOOD COMPRISING IMPREGNATING THE WOOD, UNDER WOOD IMPREGNATING PRESSURE AND AT A TEMPERATURE BELOW THE BOILING POINT OF THE SOLVENT AT SAID PRESSURE, WITH A SOLUTION CONSISTING ESSENTIALLY OF A SOLUTE SELECTED FROM THE GROUP CONSISTING OF A COMPOUND HAVING THE FORMULA:
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |