US2913068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air eliminator
Assignee: Chicago Stainless Equipment Corp
•
Filing: 1957-09-24
•
Granted: 1959-11-17
•
Expires: 1977-09-24
Abstract
No abstract record available.
Inventors
- 👤 Robert J Mistarz
- 👤 Emil N Eck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/08; F; F16; F16K; F16K24/00; F16K24/04; F16K24/042; F16K24/044; F16K24/048; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US729956A
Cited
US1775362A
Cited
US1856105A
Cited
US2037245A
Cited
US2414158A
Cited
US2252687A
Cited
US2811219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |