US2640593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Downspout strainer
Assignee: Individual
•
Filing: 1951-06-11
•
Granted: 1953-06-02
•
Expires: 1971-06-11
Abstract
No abstract record available.
Inventors
- 👤 Henry C Korb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:37
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/0404; E04D13/0409; F; F16; F16L; F16L55/00; F16L55/24; E04D2013/0413
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |