US2707222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage divider
Assignee: BROWN ELECTRO MEASUREMENT CORP
•
Filing: 1954-03-15
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Granted: 1955-04-26
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Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Franklin M Brown
- 👤 Douglas C Strain
- 👤 Marion L Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:34
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/16; H01C10/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1480953A
Cited
US1704153A
Cited
US1940102A
Cited
US2058525A
Cited
US2473409A
Cited
US2501813A
Cited
US2531150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |