US2219271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve assembly
Assignee: Individual
•
Filing: 1939-07-22
•
Granted: 1940-10-22
•
Expires: 1959-07-22
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Penick
- 👤 Kirby T Penick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:33
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/04; F16K27/044; F16K3/00; F16K3/30; F16K3/36; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4379
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1943-10-22 | 1944-04-22 | 1944-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-22 | 1948-04-22 | 1948-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-22 | 1952-04-22 | 1952-10-22 | $7700.00 | Window Closed / Lapsed |