US2247525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water inlet valve for tanks
Assignee: SHERWOOD BRASS WORKS
•
Filing: 1937-10-14
•
Granted: 1941-07-01
•
Expires: 1957-10-14
Abstract
No abstract record available.
Inventors
- 👤 Sherwood David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:25
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/108; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7462; Y10T137/7465; Y10T137/7472; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/7871
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) | 1944-06-30 | 1944-12-30 | 1945-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-06-30 | 1948-12-30 | 1949-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-06-30 | 1952-12-30 | 1953-07-01 | $7700.00 | Window Closed / Lapsed |