Patent US2016161A successfully refreshed from Google Patents.
US2016161A
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Filtercandle for artificial silk and process of filtering artificial silk solutions
Assignee: AMERICAN WILDERMAN POROUS EBON
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Filing: 1932-11-17
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Granted: 1935-10-01
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Expires: 1952-11-17
Abstract
No abstract record available.
Inventors
- 👤 Wilderman Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:22
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/31; B01D29/33; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/69; D; D01; D01D; D01D1/00; D01D1/10; D01D1/106; B29C48/03; B29C48/27; B29C48/2725; B29C48/273
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) | 1938-09-30 | 1939-04-01 | 1939-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-30 | 1943-04-01 | 1943-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-30 | 1947-04-01 | 1947-10-01 | $7700.00 | Window Closed / Lapsed |