US2487207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core material composition, mold core, and process for making mold cores
Assignee: Individual
•
Filing: 1946-04-08
•
Granted: 1949-11-08
•
Expires: 1966-04-08
Abstract
No abstract record available.
Inventors
- 👤 Edward S Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:06
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/02; B22C1/04; Y; Y10; Y10S; Y10S71/00; Y10S71/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB303858A
Cited
US2203471A
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US2183424A
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US2381735A
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US2322638A
Cited
US2401760A
Cited
US2388060A
Cited
US2431884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |