US2593224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graphic indicator responsive to a plurality of conditions in a continuous processing system
Assignee: ExxonMobil Oil Corp
•
Filing: 1944-09-07
•
Granted: 1952-04-15
•
Expires: 1964-09-07
Abstract
No abstract record available.
Inventors
- 👤 Utterback Ernest
- 👤 William A Hagerbaumer
- 👤 Roy E Dooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:18
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/2236; G05D23/2237; G07; G07C; G07C3/00; G07C3/08; G07C3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1376633A
Cited
US1161254A
Cited
US1878035A
Cited
US2135512A
Cited
US2135513A
Cited
US2398987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |