Patent US4051685A successfully refreshed from Google Patents.
Patent US3419035A successfully refreshed from Google Patents.
US3419035A
Expired / Lapsed
US
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Air elimination device for liquid transport system
Assignee: Badger Meter Inc
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Filing: 1965-05-25
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Granted: 1968-12-31
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Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Marvin E Hartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:17
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/76; B67D7/763; B01; B01D; B01D19/00; B01D19/0063; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3009; Y10T137/3012; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/3077
Claims Analysis
Total Claims: 0
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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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |