US2333752A
Expired / Lapsed
US
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High-molecular compounds of the polyamide type and process of producing same
Assignee: Individual
•
Filing: 1939-08-25
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Granted: 1943-11-09
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Expires: 1959-08-25
Abstract
No abstract record available.
Inventors
- 👤 Ufer Hanns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:42
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/62; B; B01; B01J; B01J39/00; B01J39/08; B01J39/16; B01J39/18; B01J39/19; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/60; C08G18/603; C08G69/00; C08G69/02; C08G69/08; D; D01; D01F; D01F6/00; D01F6/58; D01F6/60
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) | 1946-11-08 | 1947-05-10 | 1947-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-08 | 1951-05-10 | 1951-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-08 | 1955-05-10 | 1955-11-09 | $7700.00 | Window Closed / Lapsed |