US2494780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Downspout strainer
Assignee: Individual
•
Filing: 1947-09-20
•
Granted: 1950-01-17
•
Expires: 1967-09-20
Abstract
No abstract record available.
Inventors
- 👤 William B Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:45
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/08; E04D13/064; E04D13/0645; E04D2013/086; E04D2013/0866
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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |