US3038495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water treatment device
Assignee: WATCO Inc
•
Filing: 1959-06-24
•
Granted: 1962-06-12
•
Expires: 1979-06-24
Abstract
No abstract record available.
Inventors
- 👤 Conrad J Fortin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:24
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/686; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8359; Y10T137/8593; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87917; Y10T137/88062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2355736A
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US2731830A
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US913516A
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US2272896A
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US2376565A
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US2672051A
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US2710020A
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US2876988A
Cited
US2830618A
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US2957494A
Cited
US2949130A
Cited
US2867213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |