US650569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for discharging contents of tanks.
Assignee: FRANK M PRATT
•
Filing: 1900-02-15
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Granted: 1900-05-29
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Expires: 1920-02-15
Abstract
No abstract record available.
Inventors
- 👤 Harry R Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:08
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/68; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/48; B65G65/4809; B65G65/4836
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) | 1903-05-29 | 1903-11-28 | 1904-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-05-29 | 1907-11-28 | 1908-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-05-29 | 1911-11-28 | 1912-05-29 | $7700.00 | Window Closed / Lapsed |