US1895159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of disposing of sewage sludge
Assignee: Individual
•
Filing: 1931-07-31
•
Granted: 1933-01-24
•
Expires: 1951-07-31
Abstract
No abstract record available.
Inventors
- 👤 John E Greenawalt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:31
CPC Classifications
C; C02; C02F; C02F11/00; C02F11/12; C04; C04B; C04B18/00; C04B18/04; C04B18/06; C04B18/10; C04B18/108; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
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) | 1936-01-24 | 1936-07-25 | 1937-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-24 | 1940-07-25 | 1941-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-24 | 1944-07-25 | 1945-01-24 | $7700.00 | Window Closed / Lapsed |