US2517883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treatment of turbid liquids
Assignee: Individual
•
Filing: 1946-09-07
•
Granted: 1950-08-08
•
Expires: 1966-09-07
Abstract
No abstract record available.
Inventors
- 👤 Richard R Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:14
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US599957A
Cited
GB190527240A
Cited
US1714739A
Cited
US1981310A
Cited
US2087851A
Cited
US2110721A
Cited
US2215185A
Cited
US2272441A
Cited
US2322017A
Cited
US2370974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |