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US791030A
Expired / Lapsed
US
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Device for flushing sewer-traps.
Assignee: Individual
•
Filing: 1904-12-10
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Granted: 1905-05-30
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Expires: 1924-12-10
Abstract
No abstract record available.
Inventors
- 👤 Sylvester A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:46
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/44; F16K1/443; F16K1/446; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259; Y10T137/4456; Y10T137/4463
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) | 1908-05-29 | 1908-11-28 | 1909-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-05-29 | 1912-11-28 | 1913-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-05-29 | 1916-11-28 | 1917-05-30 | $7700.00 | Window Closed / Lapsed |