US3473377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass flowmeter
Assignee: Phillips Petroleum Co
•
Filing: 1967-02-27
•
Granted: 1969-10-21
•
Expires: 1987-02-27
Abstract
No abstract record available.
Inventors
- 👤 Marvin E Reinecke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:08
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/32; G01F1/3236; G01F1/76; G01F1/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2794341A
Cited
US2772567A
Cited
US3115777A
Cited
SU148254A1
Cited
US3279251A
Cited
US3307396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |