Patent US3073147A successfully refreshed from Google Patents.
US3073147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow meter circuit checker
Assignee: North American Aviation Corp
•
Filing: 1959-11-05
•
Granted: 1963-01-15
•
Expires: 1979-11-05
Abstract
No abstract record available.
Inventors
- 👤 Verne R Bauman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:40
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/06; G01F1/075; G01F25/00; G01F25/10; G01F25/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
MEANS FOR CHECKING IN PLACE ELECTRICAL FLOW-MEASURING CIRCUITS HAVING ELECTROMAGNETIC SENSING MEANS INSTALLED IN EQUIPMENT THROUGH WHICH THE QUANTITY OF MATERIAL PASSING IS TO BE REGISTERED AND MEANS FOR INDUCING IN SAID SENSING MEANS AN ALTERNATING CURRENT INDICATIVE OF SAID QUANTITY OF MATERIAL, COMPRISING ELECTRICAL MEANS FOR
Claim 2
Dependent Claim
47 words
MEANS FOR CHECKING IN PLACE ELECTRICAL FLOW-MEASURING CIRCUITS HAVING ELECTROMAGNETIC SENSING MEANS INSTALLED IN EQUIPMENT THROUGH WHICH THE QUANTITY OF MATERIAL PASSING IS TO BE REGISTERED AND MEANS FOR INDUCING IN SAID SENSING MEANS AN ALTERNATING CURRENT INDICATIVE OF SAID QUANTITY OF MATERIAL, COMPRISING ELECTRICAL MEANS FOR
References Cited (Backward Citations)
US1851818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |