Patent US2821030A successfully refreshed from Google Patents.
US2821030A
Expired / Lapsed
US
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Apparatus for drying materials in paste form
Assignee: Proctor and Schwartz Inc
•
Filing: 1953-10-21
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Granted: 1958-01-28
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Expires: 1973-10-21
Abstract
No abstract record available.
Inventors
- 👤 Bogaty Stanislaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:17
CPC Classifications
F; F26; F26B; F26B15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1034112A
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US1144896A
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US1358431A
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US1547294A
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US1933960A
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US2338619A
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US2654159A
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US2420739A
Cited
US2627667A
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US2591621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |