US1431146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying apparatus
Assignee: Drying Systems Inc
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Filing: 1919-06-06
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Granted: 1922-10-10
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Expires: 1939-06-06
Abstract
No abstract record available.
Inventors
- 👤 John E Bolling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:29
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/20; F26B21/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1925-10-09 | 1926-04-10 | 1926-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-10-09 | 1930-04-10 | 1930-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-10-09 | 1934-04-10 | 1934-10-10 | $7700.00 | Window Closed / Lapsed |