US3066530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rate of flow indicator
Assignee: Fischer and Porter Co
•
Filing: 1958-06-30
•
Granted: 1962-12-04
•
Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Nyyrikki K Stenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:15
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US172934A
Cited
US1809376A
Cited
US1675231A
Cited
US2009427A
Cited
GB733905A
Cited
US2778223A
Cited
US2993374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |