Patent US3410758A successfully refreshed from Google Patents.
US3410758A
Expired / Lapsed
US
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Water purifying apparatus
Assignee: Coanda Water Purifier Corp
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Filing: 1966-06-08
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Granted: 1968-11-12
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Expires: 1986-06-08
Abstract
No abstract record available.
Inventors
- 👤 Coanda Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:23
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2368665A
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US2793988A
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US3161574A
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US3244601A
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US3326266A
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US3340186A
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US3289752A
Cited
US3351119A
Cited
US3312600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |