US3519476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for impregnating wood and products thereof
Assignee: Dow Chemical Co
•
Filing: 1967-11-22
•
Granted: 1970-07-07
•
Expires: 1987-11-22
Abstract
No abstract record available.
Inventors
- 👤 Bart J Bremmer
- 👤 Lawrence F Sonnabend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:16
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/02; B27K3/15; C; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/12; C08L; C08L61/00; C08L61/34; B27K2240/00; B27K2240/30; Y; Y10; Y10T; Y10T428/00; Y10T428/4935; Y10T428/662
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3421923A
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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) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |