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US880975A
Expired / Lapsed
US
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Water trap and seal.
Assignee: Individual
•
Filing: 1906-12-31
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Granted: 1908-03-03
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Expires: 1926-12-31
Abstract
No abstract record available.
Inventors
- 👤 Edward A Conrad
- 👤 Frank M Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:22
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/042; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4463; Y10T137/4471; Y10T137/4478; Y10T137/4501; Y10T137/4508; Y10T137/4523; Y10T137/4553; Y10T137/4568; Y10T137/7504
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) | 1911-03-03 | 1911-09-02 | 1912-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-03-03 | 1915-09-02 | 1916-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-03-03 | 1919-09-02 | 1920-03-03 | $7700.00 | Window Closed / Lapsed |