US3494046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid bed drying system
Assignee: Occidental Chemical Corp
•
Filing: 1967-11-20
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Granted: 1970-02-10
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Expires: 1987-11-20
Abstract
No abstract record available.
Inventors
- 👤 Gordon G Harkreader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:15
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/02; F26B3/06; F26B3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA688027A
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US2316207A
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US2378157A
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US2677604A
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US2548642A
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US2668041A
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US2635684A
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US3017254A
Cited
US3040439A
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US3349499A
Cited
US3349500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |