US2673958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery voltmeter
Assignee: Sterling Manufacturing Co
•
Filing: 1949-10-19
•
Granted: 1954-03-30
•
Expires: 1969-10-19
Abstract
No abstract record available.
Inventors
- 👤 Bernard R Banus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:16
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/36; G01R31/382; G01R31/3835; G01R31/364; G01R31/3644; G01R31/3646
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB275399A
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DE153584C
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US460650A
Cited
US532561A
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DE143512C
Cited
US1072531A
Cited
US1297416A
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GB190321700A
Cited
GB191505261A
Cited
GB160332A
Cited
GB322558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |