Patent US2552744A successfully refreshed from Google Patents.
US2552744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strainer
Assignee: Individual
•
Filing: 1948-07-20
•
Granted: 1951-05-15
•
Expires: 1968-07-20
Abstract
No abstract record available.
Inventors
- 👤 William M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:33
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1037; B; B01; B01D; B01D35/00; B01D35/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |