Patent US2155658A successfully refreshed from Google Patents.
US2155658A
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US
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Surgical and medical preparations
Assignee: CHEMISCHE FORSCHUNGS GmbH
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Filing: 1936-12-29
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Granted: 1939-04-25
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Expires: 1956-12-29
Abstract
No abstract record available.
Inventors
- 👤 Willy O Herrmann
- 👤 Haehnel Wolfram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:47
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K47/00; A61K47/30; A61K47/32; A61K9/0024; A61L; A61L27/00; A61L27/14; A61L27/16; Y; Y10; Y10S; Y10S260/00; Y10S260/47
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) | 1942-04-24 | 1942-10-24 | 1943-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-04-24 | 1946-10-24 | 1947-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-04-24 | 1950-10-24 | 1951-04-25 | $7700.00 | Window Closed / Lapsed |