US1472314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and apparatus for drying and treating materials
Assignee: Perry & Webster Inc
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Filing: 1918-04-27
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Granted: 1923-10-30
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Expires: 1938-04-27
Abstract
No abstract record available.
Inventors
- 👤 Paul W Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:38
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/001; F26B17/10; F26B17/106; F26B17/12; F26B17/14
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) | 1926-10-29 | 1927-04-30 | 1927-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-10-29 | 1931-04-30 | 1931-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-10-29 | 1935-04-30 | 1935-10-30 | $7700.00 | Window Closed / Lapsed |