US2770855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making liner sleeves and refractory shell type molds
Assignee: International Motors LLC
•
Filing: 1952-11-14
•
Granted: 1956-11-20
•
Expires: 1972-11-14
Abstract
No abstract record available.
Inventors
- 👤 Garnet P Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:11
CPC Classifications
B; B22; B22C; B22C23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1544216A
Cited
US1846996A
Cited
US1976626A
Cited
US2112910A
Cited
US2351720A
Cited
US2386028A
Cited
US2688780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |