US2549822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binder for foundry compositions
Assignee: Masonite Corp
•
Filing: 1947-11-24
•
Granted: 1951-04-24
•
Expires: 1967-11-24
Abstract
No abstract record available.
Inventors
- 👤 Koonce Wilbur Euclid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:20
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
31 words
MOLDED PRODUCTS COMPRISING FINELY DIVIDED INORGANIC MATERIAL AND A SUBSTANTIALLY WATERINSOLUBLE BINDER THEREOF: SAID BINDER CONSISTING ESSENTIALLY OF THE HEAT REACTION PRODUCT OF THE FOLLOWING COMPONENTS IN ABOUT THE PROPORTIONS GIVEN.
References Cited (Backward Citations)
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US903558A
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US1091690A
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US1467321A
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US2256832A
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GB497477A
Cited
US2156160A
Cited
US2392162A
Cited
US2392163A
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US2397323A
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US2405650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |