US2633098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-pressure alarm signal
Assignee: MID CONTINEUT SUPPLY Co I
•
Filing: 1951-01-13
•
Granted: 1953-03-31
•
Expires: 1971-01-13
Abstract
No abstract record available.
Inventors
- 👤 Earl G Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:03
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/16; G01L19/00; G01L19/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |