US3321085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water conditioner
Assignee: MCM Machine Works Inc
•
Filing: 1965-06-10
•
Granted: 1967-05-23
•
Expires: 1985-06-10
Abstract
No abstract record available.
Inventors
- 👤 Charles O Moorhead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:30
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42; C02F2201/00; C02F2201/002; C02F2201/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA553819A
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US1433714A
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US2097828A
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US2316206A
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US2550070A
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US2796989A
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US2983384A
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US3122501A
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US3002870A
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US3225932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |