US1213879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-treating apparatus.
Assignee: Individual
•
Filing: 1915-08-16
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Granted: 1917-01-30
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Expires: 1935-08-16
Abstract
No abstract record available.
Inventors
- 👤 Aage Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:28
CPC Classifications
F; F28; F28F; F28F5/00; F28F5/04; B; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/1145; B01F27/11451; B01F27/60; B01F27/72; B01F35/00; B01F35/90; B01F35/92; B01F35/95; B01F2101/00; B01F2101/06; Y; Y10; Y10S; Y10S165/00; Y10S165/135; Y10S165/139; Y10S165/152; Y10S165/154
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) | 1920-01-30 | 1920-07-31 | 1921-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-01-30 | 1924-07-31 | 1925-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-01-30 | 1928-07-31 | 1929-01-30 | $7700.00 | Window Closed / Lapsed |