US2652925A
Expired / Lapsed
US
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Magnetic treatment device for liquids
Assignee: Individual
•
Filing: 1949-08-16
•
Granted: 1953-09-22
•
Expires: 1969-08-16
Abstract
No abstract record available.
Inventors
- 👤 Vermeiren Theophile Isi Sophie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:26
CPC Classifications
F; F28; F28F; F28F19/00; F28F19/004; B; B21; B21C; B21C37/00; C; C02; C02F; C02F1/00; C02F1/48; C02F1/484; C02F2201/00; C02F2201/48; C02F2201/483; C02F2303/00; C02F2303/22; Y; Y10; Y10S; Y10S204/00; Y10S204/05
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) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |