US3481587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure injector and system for pressurizing ingredients
Assignee: ISERNHAGEN KUNSTSTOFF VERF
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Filing: 1968-01-03
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Granted: 1969-12-02
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Expires: 1988-01-03
Abstract
No abstract record available.
Inventors
- 👤 Joachim Ruhnau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:41
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/60; B29B7/603; B01; B01F; B01F35/00; B01F35/71; B01F35/717; B01F35/7174; B01F35/80; B01F35/88; B01F35/882; B01F35/8822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |