US2593897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for indicating the maximum of a plurality of conditions
Assignee: Lewis Engineering Co
•
Filing: 1947-03-14
•
Granted: 1952-04-22
•
Expires: 1967-03-14
Abstract
No abstract record available.
Inventors
- 👤 Knud J Knudsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:46
CPC Classifications
G; G08; G08B; G08B23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2285716A
Cited
US2420969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |