US2440002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective metering system with supervised control device
Assignee: CONTROL INSTR CO Inc
•
Filing: 1946-11-26
•
Granted: 1948-04-20
•
Expires: 1966-11-26
Abstract
No abstract record available.
Inventors
- 👤 John L Bower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:46
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20282E
Cited
US758819A
Cited
US1267214A
Cited
US2106825A
Cited
US2147423A
Cited
US2368701A
Cited
US2407361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |