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US1079391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for purifying sewage and the like.
Assignee: Individual
•
Filing: 1913-08-05
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Granted: 1913-11-25
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Expires: 1933-08-05
Abstract
No abstract record available.
Inventors
- 👤 Paul Bunzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:58
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1916-11-24 | 1917-05-26 | 1917-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-11-24 | 1921-05-26 | 1921-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-11-24 | 1925-05-26 | 1925-11-25 | $7700.00 | Window Closed / Lapsed |