US2808786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for metering a gassing liquid
Assignee: —
•
Filing: —
•
Granted: 1957-10-08
•
Expires: 1974-10-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/02; G01F11/021; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/8593; Y10T137/85978; Y10T137/85986
Claims Analysis
Total Claims: 0
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US942368A
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US2237520A
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US2423439A
Cited
US2415571A
Cited
US2696785A
Cited
US2693196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |