US2398649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of wood
Assignee: EIDP Inc
•
Filing: 1943-03-10
•
Granted: 1946-04-16
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Expires: 1963-03-10
Abstract
No abstract record available.
Inventors
- 👤 Kvalnes Hamline Monroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:42
CPC Classifications
B; B27; B27K; B27K5/00; B27K5/04; B27K3/00; B27K3/02; B27K3/15; C; C08; C08L; C08L97/00; C08L97/02; C08L61/00; C08L61/20; C08L61/22; C08L61/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-04-15 | 1949-10-15 | 1950-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-15 | 1953-10-15 | 1954-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-15 | 1957-10-15 | 1958-04-16 | $7700.00 | Window Closed / Lapsed |