US2496370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for filtration of liquids
Assignee: Paterson Engineering Co Ltd
•
Filing: 1947-05-24
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Granted: 1950-02-07
•
Expires: 1967-05-24
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Baily
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:31
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/44; B01D29/11; B01D29/31; B01D29/33; B01D29/50; B01D29/52; B01D29/96; B01D29/965; B01D2201/00; B01D2201/04; B01D2201/043; B01D2201/0446; B01D37/00; B01D37/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US376095A
Cited
US517240A
Cited
DE458997C
Cited
US726427A
Cited
US1992101A
Cited
US2300849A
Cited
US2423172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |