Patent US2674811A successfully refreshed from Google Patents.
US2674811A
Expired / Lapsed
US
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Drier for porous materials
Assignee: Uniroyal Inc
•
Filing: 1950-11-17
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Granted: 1954-04-13
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Expires: 1970-11-17
Abstract
No abstract record available.
Inventors
- 👤 Harold A Thornburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:25
CPC Classifications
F; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/18; B; B29; B29C; B29C35/00; B29C35/02; B29C35/04; B29C35/06; B29C44/00; B29C44/34; B29C44/56; F26B13/00; F26B13/10; F26B13/101; B29C35/045; B29K; B29K2021/00
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) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |