US1547764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste-valve mechanism
Assignee: BRASS PRODUCTS CO
•
Filing: 1924-10-18
•
Granted: 1925-07-28
•
Expires: 1944-10-18
Abstract
No abstract record available.
Inventors
- 👤 Herman W Kuehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:21
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/22; E03C1/23; E03C1/2302; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6089
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) | 1928-07-27 | 1929-01-26 | 1929-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-07-27 | 1933-01-26 | 1933-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-07-27 | 1937-01-26 | 1937-07-28 | $7700.00 | Window Closed / Lapsed |