Patent US2420399A successfully refreshed from Google Patents.
US2420399A
Expired / Lapsed
US
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Thread drier having radiant heaters and automatic control means
Assignee: Individual
•
Filing: 1941-06-12
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Granted: 1947-05-13
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Expires: 1961-06-12
Abstract
No abstract record available.
Inventors
- 👤 Francis H M New
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:18
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/28; F26B3/30; F26B13/00; F26B13/001; G; G05; G05D; G05D22/00; G05D22/02; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-12 | 1950-11-11 | 1951-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-12 | 1954-11-11 | 1955-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-12 | 1958-11-11 | 1959-05-13 | $7700.00 | Window Closed / Lapsed |