US2312446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic material from vegetable glues
Assignee: Individual
•
Filing: 1938-06-08
•
Granted: 1943-03-02
•
Expires: 1958-06-08
Abstract
No abstract record available.
Inventors
- 👤 Schoenbeck Friedrich
- 👤 Czapp Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:51
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/28; C08; C08L; C08L5/00; C08L5/12
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) | 1946-03-01 | 1946-08-31 | 1947-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-03-01 | 1950-08-31 | 1951-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-03-01 | 1954-08-31 | 1955-03-02 | $7700.00 | Window Closed / Lapsed |