US2146771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial leather composition
Assignee: TUFIDE PRODUCTS Corp
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Filing: 1935-10-30
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Granted: 1939-02-14
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Expires: 1955-10-30
Abstract
No abstract record available.
Inventors
- 👤 Horace A Sheesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:52
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/02; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10S524/00; Y10S524/925; Y10S524/926; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/249999; Y10T442/00; Y10T442/20; Y10T442/2221; Y10T442/2246; Y10T442/2361; Y10T442/2631; Y10T442/2721
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) | 1942-02-13 | 1942-08-15 | 1943-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-02-13 | 1946-08-15 | 1947-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-02-13 | 1950-08-15 | 1951-02-14 | $7700.00 | Window Closed / Lapsed |