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Patent US3406870A successfully refreshed from Google Patents.
US3406870A
Expired / Lapsed
US
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Swimming pool chlorinator
Assignee: Arneson Products Inc
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Filing: 1966-04-18
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Granted: 1968-10-22
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Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 Howard M Arneson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:59
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/688; B; B01; B01F; B01F21/00; B01F21/20; B01F21/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US740904A
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US1094003A
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US1109832A
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US2181729A
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FR875314A
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US2620097A
Cited
US2793908A
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US3084350A
Cited
US3229854A
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US3198404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |