US2532016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical liquid treating device
Assignee: Individual
•
Filing: 1945-06-05
•
Granted: 1950-11-28
•
Expires: 1965-06-05
Abstract
No abstract record available.
Inventors
- 👤 Dubilier William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:56
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/48; C02F1/46; C02F1/461; C02F1/46104; C02F1/46109; C02F2001/46133; C02F2001/46152; C02F2001/46157; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2201/4612; C02F2201/46125; C02F2201/4616; C02F2201/46165; C02F2201/4617; C02F2303/00; C02F2303/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US525304A
Cited
US671946A
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US1403102A
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US661340A
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US820113A
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US935457A
Cited
US1065361A
Cited
US2121875A
Cited
US1930830A
Cited
US2299964A
Cited
US2207583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |