US2348039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and process for treating fibrous materials
Assignee: Individual
•
Filing: 1940-12-31
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Granted: 1944-05-02
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Expires: 1960-12-31
Abstract
No abstract record available.
Inventors
- 👤 Ulrich Heinrich
- 👤 Pioetz Ernst
- 👤 Nold Eberhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:37
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/60; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/61; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5264; D06P1/5278; D21H17/20; D21H17/33; D21H17/46; D21H17/54; D21H17/56; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2197
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) | 1947-05-02 | 1947-11-01 | 1948-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-05-02 | 1951-11-01 | 1952-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-05-02 | 1955-11-01 | 1956-05-02 | $7700.00 | Window Closed / Lapsed |