US2449136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making molds
Assignee: —
•
Filing: —
•
Granted: 1948-09-14
•
Expires: 1965-09-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:36
CPC Classifications
B; B22; B22C; B22C15/00; B22C15/23; B22C15/24; Y; Y10; Y10S; Y10S425/00; Y10S425/033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1367079A
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US1333502A
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US1589014A
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US1581795A
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US1745408A
Cited
US1914037A
Cited
US1912673A
Cited
US1965949A
Cited
US2042330A
Cited
US2241996A
Cited
US2258452A
Cited
US2346182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-14 | 1952-03-15 | 1952-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-14 | 1956-03-15 | 1956-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-14 | 1960-03-15 | 1960-09-14 | $7700.00 | Window Closed / Lapsed |