Patent US4379232A successfully refreshed from Google Patents.
Patent US2569433A successfully refreshed from Google Patents.
US2569433A
Expired / Lapsed
US
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Electric surface gauge
Assignee: MODERN TOOLS Inc
•
Filing: 1945-06-14
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Granted: 1951-09-25
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Expires: 1965-06-14
Abstract
No abstract record available.
Inventors
- 👤 George A Highberg
- 👤 Harry J Hauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:56
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/28; G01B7/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB544695A
Cited
US2286014A
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US2383550A
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US2438453A
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US2493524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |