Patent US2966215A successfully refreshed from Google Patents.
US2966215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vessel for treatment of fragmentary material
Assignee: Individual
•
Filing: 1957-05-01
•
Granted: 1960-12-27
•
Expires: 1977-05-01
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Durkee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:44
CPC Classifications
D; D21; D21C; D21C7/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US203887A
Cited
US1160523A
Cited
US1297569A
Cited
US1353336A
Cited
US1954508A
Cited
US2080946A
Cited
US2235992A
Cited
US2335611A
Cited
US2425335A
Cited
US2488671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |