US705704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-sealed air-pump.
Assignee: Individual
•
Filing: 1901-11-08
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Granted: 1902-07-29
•
Expires: 1921-11-08
Abstract
No abstract record available.
Inventors
- 👤 Michiel Potvliet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:26
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K15/14; F16K15/148; F16K15/1402; F16K15/16; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7841; Y10T137/785; Y10T137/7859; Y10T137/7861; Y10T137/7862; Y10T137/7863; Y10T137/7879; Y10T137/7888; Y10T137/7891
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) | 1905-07-28 | 1906-01-27 | 1906-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-07-28 | 1910-01-27 | 1910-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-07-28 | 1914-01-27 | 1914-07-29 | $7700.00 | Window Closed / Lapsed |