US2376200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating fibrous materials and products so produced
Assignee: Individual
•
Filing: 1942-02-25
•
Granted: 1945-05-15
•
Expires: 1962-02-25
Abstract
No abstract record available.
Inventors
- 👤 Smidth Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:36
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49; D21H17/50; Y; Y10; Y10T; Y10T428/00; Y10T428/4935
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) | 1948-05-14 | 1948-11-13 | 1949-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-05-14 | 1952-11-13 | 1953-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-05-14 | 1956-11-13 | 1957-05-15 | $7700.00 | Window Closed / Lapsed |