Patent US2492488A successfully refreshed from Google Patents.
US2492488A
Expired / Lapsed
US
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Molding material and method of preparing same
Assignee: Individual
•
Filing: 1947-01-20
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Granted: 1949-12-27
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Expires: 1967-01-20
Abstract
No abstract record available.
Inventors
- 👤 Kremer Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:11
CPC Classifications
C; C08; C08L; C08L21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2025432A
Cited
US1977748A
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US2040818A
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US2201321A
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US2057733A
Cited
US2399655A
Cited
US2250987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |