Patent US3371788A successfully refreshed from Google Patents.
US3371788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste treating apparatus
Assignee: Individual
•
Filing: 1965-06-29
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Granted: 1968-03-05
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Expires: 1985-06-29
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:25
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/24; B01D21/2405; B01D21/2416; B01D21/0018; B01D21/0039; B01D21/0042; B01D21/10; B01D21/12; B01D21/14; B01D21/18; B01D21/2433; B01D21/2438; B01D21/245; B01D21/30; B01D21/307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1892688A
Cited
US2295982A
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US2661094A
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US2798041A
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US2681151A
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US2875697A
Cited
US3166502A
Cited
US3206036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |