US1582450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplex strainer
Assignee: Individual
•
Filing: 1922-07-28
•
Granted: 1926-04-27
•
Expires: 1942-07-28
Abstract
No abstract record available.
Inventors
- 👤 Chester D Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:28
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/50; B01D29/52; B01D29/54; B01D29/11; B01D29/13; B01D29/15; B01D29/23; B01D35/00; B01D35/12; B01D2201/00; B01D2201/02; B01D2201/04; B01D2201/043; B01D2201/0446
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) | 1929-04-26 | 1929-10-26 | 1930-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-04-26 | 1933-10-26 | 1934-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-04-26 | 1937-10-26 | 1938-04-27 | $7700.00 | Window Closed / Lapsed |