US3366459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water chlorinating unit
Assignee: Individual
•
Filing: 1966-11-03
•
Granted: 1968-01-30
•
Expires: 1986-11-03
Abstract
No abstract record available.
Inventors
- 👤 Richards Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:44
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/688; B; B01; B01F; B01F21/00; B01F21/20; B01F21/22; B01F25/00; B01F25/30; B01F25/31; B01F25/316
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US598103A
Cited
US1736890A
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US1912937A
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US2588242A
Cited
US2551494A
Cited
US2738323A
Cited
US2820701A
Cited
US3145728A
Cited
US3145087A
Cited
US3187947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |