US1223004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for disposal of sewage by micro-organisms.
Assignee: EDWARD A ROBINSON
•
Filing: 1917-02-12
•
Granted: 1917-04-17
•
Expires: 1937-02-12
Abstract
No abstract record available.
Inventors
- 👤 Oliver F Starr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:20
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/30; C02F3/302; Y; Y10; Y10S; Y10S210/00; Y10S210/918
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) | 1920-04-16 | 1920-10-16 | 1921-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-04-16 | 1924-10-16 | 1925-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-04-16 | 1928-10-16 | 1929-04-17 | $7700.00 | Window Closed / Lapsed |