US2474705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for partially dehydrating and cleansing oily wood preservatives
Assignee: Southern Wood Preserving Co
•
Filing: 1944-05-29
•
Granted: 1949-06-28
•
Expires: 1964-05-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Vaughan
- 👤 Joseph C Vinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:31
CPC Classifications
C; C10; C10C; C10C1/00; C10C1/02
Claims Analysis
Total Claims: 0
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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) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |