Patent US2488922A successfully refreshed from Google Patents.
US2488922A
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US
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Method for making impressions of objects
Assignee: Individual
•
Filing: 1944-09-20
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Granted: 1949-11-22
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Expires: 1964-09-20
Abstract
No abstract record available.
Inventors
- 👤 Warren J Mead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:58
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/02; B22C9/03; A; A61; A61C; A61C9/00; A61C9/0006; A61C9/0013; B29; B29C; B29C33/00; B29C33/38; B29C33/3821; Y; Y10; Y10S; Y10S264/00; Y10S264/30; Y10S264/50; Y10S425/00; Y10S425/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1047594A
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US1154255A
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US1801346A
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US1856394A
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US2057039A
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US2145941A
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US2277288A
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US2280074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-21 | 1953-05-23 | 1953-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-21 | 1957-05-23 | 1957-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-21 | 1961-05-23 | 1961-11-22 | $7700.00 | Window Closed / Lapsed |