US2284896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making polymeric products and for modifying polymeric products
Assignee: EIDP Inc
•
Filing: 1939-05-24
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Granted: 1942-06-02
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Expires: 1959-05-24
Abstract
No abstract record available.
Inventors
- 👤 William E Hanford
- 👤 Donald F Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:19
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/395; C; C08; C08B; C08B15/00; C08B15/05; C08B15/06; C08F; C08F8/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/34; C08G18/341; C08G18/38; C08G18/3855; C08G18/3876; C08G18/40; C08G18/60; C08G18/603; C08G18/64; C08G18/6484; C08G18/67; C08G18/675; C08G18/6755; C08G18/70; C08G18/72; C08G73/00; D01; D01F; D01F6/00; D01F6/58; D01F6/72
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) | 1945-06-01 | 1945-12-01 | 1946-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-01 | 1949-12-01 | 1950-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-01 | 1953-12-01 | 1954-06-02 | $7700.00 | Window Closed / Lapsed |