US2942613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlling the drain or fill rate of containers
Assignee: ACOUSTICA ASSOCIATES Inc
•
Filing: 1959-02-12
•
Granted: 1960-06-28
•
Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Donald R Church
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:17
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2531; Y10T137/2534; Y10T137/7287; Y10T137/7313; Y10T137/7316
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2509629A
Cited
US2687168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |