Patent US638740A successfully refreshed from Google Patents.
US638740A
Expired / Lapsed
US
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Automatic tank-valve.
Assignee: Individual
•
Filing: 1899-02-17
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Granted: 1899-12-12
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Expires: 1919-02-17
Abstract
No abstract record available.
Inventors
- 👤 John T Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:39
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/24; F16K31/26; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7381; Y10T137/74; Y10T137/7413
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) | 1902-12-12 | 1903-06-13 | 1903-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-12-12 | 1907-06-13 | 1907-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-12-12 | 1911-06-13 | 1911-12-13 | $7700.00 | Window Closed / Lapsed |