US1284465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve.
Assignee: Individual
•
Filing: 1917-12-06
•
Granted: 1918-11-12
•
Expires: 1937-12-06
Abstract
No abstract record available.
Inventors
- 👤 David S Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:44
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/022; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2663; Y10T137/2668; Y10T137/2673
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) | 1921-11-11 | 1922-05-13 | 1922-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-11-11 | 1926-05-13 | 1926-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-11-11 | 1930-05-13 | 1930-11-12 | $7700.00 | Window Closed / Lapsed |