US2434780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of molding hot materials
Assignee: United States Gypsum Co
•
Filing: 1945-01-29
•
Granted: 1948-01-20
•
Expires: 1965-01-29
Abstract
No abstract record available.
Inventors
- 👤 John E Wiss
- 👤 Rio B Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:48
CPC Classifications
B; B29; B29C; B29C39/00; Y; Y10; Y10S; Y10S425/00; Y10S425/029; Y10S425/812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1992230A
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US1592536A
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US1659638A
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US1644543A
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US2161281A
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US2314378A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-19 | 1951-07-21 | 1952-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-19 | 1955-07-21 | 1956-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-19 | 1959-07-21 | 1960-01-20 | $7700.00 | Window Closed / Lapsed |