US2998089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air gauge weighing device
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1958-10-27
•
Granted: 1961-08-29
•
Expires: 1978-10-27
Abstract
No abstract record available.
Inventors
- 👤 Ernst Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:41
CPC Classifications
G; G01; G01G; G01G5/00; G01G5/006
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2497236A
Cited
US2451451A
Cited
US2775887A
Cited
US2755057A
Cited
US2875611A
Cited
US2855489A
Cited
US2830803A
Cited
US2837620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |