Patent US2090727A successfully refreshed from Google Patents.
US2090727A
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Foam producing device
Assignee: CEAG Concordia Elekrizitats AG
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Filing: 1935-12-04
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Granted: 1937-08-24
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Expires: 1955-12-04
Abstract
No abstract record available.
Inventors
- 👤 Gosmann Walther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:27
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/235; B01F25/00; B01F25/40; B01F25/45; B01F25/452; B01F25/4524; B01F25/45241; Y; Y10; Y10S; Y10S261/00; Y10S261/26; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869
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) | 1940-08-23 | 1941-02-22 | 1941-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-08-23 | 1945-02-22 | 1945-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-08-23 | 1949-02-22 | 1949-08-24 | $7700.00 | Window Closed / Lapsed |