Patent US2614795A successfully refreshed from Google Patents.
US2614795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control unit
Assignee: Cooper Industries LLC
•
Filing: 1947-10-27
•
Granted: 1952-10-21
•
Expires: 1967-10-27
Abstract
No abstract record available.
Inventors
- 👤 Allen Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:55
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/02; E21B34/025; F; F16; F16K; F16K43/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87096; Y10T137/87121; Y10T137/87917
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US371157A
Cited
US517629A
Cited
US1047774A
Cited
US1099389A
Cited
US1360431A
Cited
US1832228A
Cited
US1833653A
Cited
US1831713A
Cited
US2079195A
Cited
FR773075A
Cited
US1985279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |