US2785455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for working clay-like materials
Assignee: INTERNAT CLAY MACHINERY OF DEL
•
Filing: 1953-04-07
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Granted: 1957-03-19
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Expires: 1973-04-07
Abstract
No abstract record available.
Inventors
- 👤 Roy H Mcelroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B30B11/245; B28; B28B; B28B3/00; B28B3/20; B28B3/22; B28C; B28C1/00; B28C1/10; B28C1/14; B28C1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL36676C
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US475915A
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US598282A
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US1877138A
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GB412248A
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US1987359A
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US2063266A
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DE657758C
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DE664650C
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FR941360A
Cited
US2642643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |