Patent US1998576A successfully refreshed from Google Patents.
US1998576A
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Novel artificial silk effects and process of producing same
Assignee: Heberlein Patent Corp
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Filing: 1927-01-13
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Granted: 1935-04-23
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Expires: 1947-01-13
Abstract
No abstract record available.
Inventors
- 👤 Heberlein Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:42
CPC Classifications
D; D06; D06Q; D06Q1/00; D06Q1/02; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/13; D06M11/155; D06M11/32; D06M11/36; D06M11/38; D06M11/42; D06M11/51; D06M11/55; D06M11/58; D06M11/59; D06M11/62; D06M11/64; D06M11/67; D06M11/68; D06M11/70; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
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) | 1938-04-22 | 1938-10-22 | 1939-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-22 | 1942-10-22 | 1943-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-22 | 1946-10-22 | 1947-04-23 | $7700.00 | Window Closed / Lapsed |