US758822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circulating-valve.
Assignee: Individual
•
Filing: 1903-01-20
•
Granted: 1904-05-03
•
Expires: 1923-01-20
Abstract
No abstract record available.
Inventors
- 👤 John Collis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:21
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/30; F16K1/301; F16K1/303; A; A61; A61M; A61M39/00; A61M39/22; A61M39/225
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) | 1907-05-03 | 1907-11-02 | 1908-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-05-03 | 1911-11-02 | 1912-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-05-03 | 1915-11-02 | 1916-05-03 | $7700.00 | Window Closed / Lapsed |