Patent US5402769A successfully refreshed from Google Patents.
Patent US3482520A successfully refreshed from Google Patents.
US3482520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for introducing one fluid into another
Assignee: Individual
•
Filing: 1967-12-13
•
Granted: 1969-12-09
•
Expires: 1987-12-13
Abstract
No abstract record available.
Inventors
- 👤 Hans Andreas Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:17
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F1/763; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2331; B01F23/23311; B01F23/23314; B01F23/2334; B01F23/23341; B01F23/40; B01F23/43; B01F23/431; B01F25/00; B01F25/30; B01F25/31; B01F25/313; B01F25/3131; B01F27/00; B01F27/50; C02F3/00; C02F3/02; C02F3/12; C02F3/20; C02F3/205; C02F3/206; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1264315A
Cited
US1919847A
Cited
US2319228A
Cited
US2772863A
Cited
US2911137A
Cited
US2990779A
Cited
US3405865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |