US2670439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for irradiating liquids
Assignee: Hanovia Chemical and Manufacturing Co
•
Filing: 1950-07-05
•
Granted: 1954-02-23
•
Expires: 1970-07-05
Abstract
No abstract record available.
Inventors
- 👤 Harold E Darney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:23
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/30; C02F1/32; C02F1/325; B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/122; B01J19/123; C02F2201/00; C02F2201/32; C02F2201/322; C02F2201/3223; C02F2201/324
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US478093A
Cited
US1196081A
Cited
US1388835A
Cited
US1460092A
Cited
US1842313A
Cited
US2000377A
Cited
US2072417A
Cited
US2160099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |