Patent US2310408A successfully refreshed from Google Patents.
US3436162A
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Apparatus for producing and discharging a foam of a liquid
Assignee: Rewo Chemische Fabrik GmbH
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Filing: 1967-04-11
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Granted: 1969-04-01
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Expires: 1987-04-11
Abstract
No abstract record available.
Inventors
- 👤 Egon Nohl
- 👤 Gertrud Nohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:38
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/408; A47L11/4088; A47L11/32; A47L11/325; A47L11/4036; A47L11/4075; A47L11/4083; Y; Y10; Y10S; Y10S261/00; Y10S261/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2293722A
Cited
US3120676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |