US2358228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1942-11-20
•
Granted: 1944-09-12
•
Expires: 1962-11-20
Abstract
No abstract record available.
Inventors
- 👤 Addison C Hoof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:51
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/044; Y; Y10; Y10S; Y10S251/00; Y10S251/90; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2567; Y10T137/2569; Y10T137/7722; Y10T137/7734; Y10T137/7837; Y10T137/7866
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) | 1947-09-12 | 1948-03-13 | 1948-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-09-12 | 1952-03-13 | 1952-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-09-12 | 1956-03-13 | 1956-09-12 | $7700.00 | Window Closed / Lapsed |