US3391469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal dryer
Assignee: SAN KENTEEN CORP
•
Filing: 1965-12-09
•
Granted: 1968-07-09
•
Expires: 1985-12-09
Abstract
No abstract record available.
Inventors
- 👤 Charles H Reeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:15
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/26; A47L15/30; A47L15/42; A47L15/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US817802A
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US1405394A
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US1755539A
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US2415238A
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US2521054A
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US2416475A
Cited
DE962964C
Cited
US2784500A
Cited
FR1151157A
Cited
US2994965A
Cited
DE1154402B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |