US2445443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for drying extended lengths of thread with infrared lamps
Assignee: Westinghouse Electric Corp
•
Filing: 1942-02-10
•
Granted: 1948-07-20
•
Expires: 1962-02-10
Abstract
No abstract record available.
Inventors
- 👤 Charles R Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:14
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/28; F26B3/283; F26B13/00; F26B13/001
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) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |