US2420739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying unit using steam jets
Assignee: American Seal Kap Corp of Delaware
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Filing: 1945-10-25
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Granted: 1947-05-20
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Expires: 1965-10-25
Abstract
No abstract record available.
Inventors
- 👤 William C Dorsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:55
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/50; B; B41; B41F; B41F23/00; B41F23/04; B41F23/0403; B41F23/0423; B41F23/0433; F26B13/00; F26B13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB257449A
Cited
US2197463A
Cited
US2306607A
Cited
US2366484A
Cited
US2347555A
Cited
US2402237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-19 | 1950-11-18 | 1951-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-19 | 1954-11-18 | 1955-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-19 | 1958-11-18 | 1959-05-20 | $7700.00 | Window Closed / Lapsed |