US2908964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure treatment of material
Assignee: Individual
•
Filing: 1957-01-18
•
Granted: 1959-10-20
•
Expires: 1977-01-18
Abstract
No abstract record available.
Inventors
- 👤 Appenzeller Valentin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:45
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/02; F16C13/022; F16C13/024; F16C13/026; D; D06; D06B; D06B15/00; D06B15/02; D06C; D06C15/00; D06C15/08; D21; D21G; D21G1/00; D21G1/002; D21G1/0026; D21G1/02; D21G1/0206; D21G1/0213; D21G1/022; F16C2340/00
Claims Analysis
Total Claims: 0
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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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |