US2329960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float valve
Assignee: Individual
•
Filing: 1941-07-26
•
Granted: 1943-09-21
•
Expires: 1961-07-26
Abstract
No abstract record available.
Inventors
- 👤 Maarten M Verheul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/148; E; E21; E21B; E21B21/00; E21B21/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7854; Y10T137/7879; Y10T137/7888; Y10T137/789
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) | 1946-09-20 | 1947-03-22 | 1947-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-20 | 1951-03-22 | 1951-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-20 | 1955-03-22 | 1955-09-21 | $7700.00 | Window Closed / Lapsed |