US3368045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow indicator utilizing permanent magnets for switch actuation
Assignee: Acme Machine Works Inc
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Filing: 1964-11-30
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Granted: 1968-02-06
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Expires: 1984-11-30
Abstract
No abstract record available.
Inventors
- 👤 Jay A Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:48
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/40; G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/28; H01H36/00; H01H36/008
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) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |