US2476933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of facing compositions for metal casting molds
Assignee: Individual
•
Filing: 1946-04-04
•
Granted: 1949-07-19
•
Expires: 1966-04-04
Abstract
No abstract record available.
Inventors
- 👤 Burgess P Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:20
CPC Classifications
B; B22; B22C; B22C3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1441199A
Cited
US1516113A
Cited
US1758095A
Cited
US1866278A
Cited
US1955936A
Cited
US2385500A
Cited
US2322638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |