Patent US2483672A successfully refreshed from Google Patents.
US2483672A
Expired / Lapsed
US
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Water treating apparatus
Assignee: Worthington Pump and Machinery Corp
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Filing: 1944-01-08
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Granted: 1949-10-04
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Expires: 1964-01-08
Abstract
No abstract record available.
Inventors
- 👤 Merrill P Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:20
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5281
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1035813A
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US1030366A
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US1971338A
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US2130417A
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US2245587A
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US2240182A
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US2234561A
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US2317847A
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US2314977A
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US2365293A
Cited
US2355561A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |