US3351485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization and preservation of wood
Assignee: Dow Chemical Co
•
Filing: 1964-03-06
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Granted: 1967-11-07
•
Expires: 1984-03-06
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Langner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:39
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/34; B27K3/343; B27K3/02; B27K3/0278; Y; Y10; Y10T; Y10T428/00; Y10T428/4935; Y10T428/662
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A PROCESS FOR PRESERVING WOOD WHICH COMPRISES IMPREGNATING THE WOOD WITH A 1,4-DIOXANONE.
Claim 2
Dependent Claim
13 words
A PROCESS FOR PRESERVING WOOD WHICH COMPRISES IMPREGNATING THE WOOD WITH A 1,4-DIOXANONE.
References Cited (Backward Citations)
US2833006A
Cited
US2875020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |