US2838205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control valve
Assignee: Individual
•
Filing: 1954-12-15
•
Granted: 1958-06-10
•
Expires: 1974-12-15
Abstract
No abstract record available.
Inventors
- 👤 Jack J Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:46
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/002; Y; Y10; Y10S; Y10S261/00; Y10S261/07; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7791; Y10T137/7792; Y10T137/7793; Y10T137/7796
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1481792A
Cited
DE595243C
Cited
US1944088A
Cited
US2331729A
Cited
US2508492A
Cited
US2441220A
Cited
US2584418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |