US2623618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve control
Assignee: Individual
•
Filing: 1946-08-23
•
Granted: 1952-12-30
•
Expires: 1966-08-23
Abstract
No abstract record available.
Inventors
- 👤 Morris H Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:03
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US322423A
Cited
US1508138A
Cited
US1587869A
Cited
US1681487A
Cited
US1908763A
Cited
US1764936A
Cited
US1904375A
Cited
US2005891A
Cited
US2114013A
Cited
US2109767A
Cited
US2435440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |