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US2452241A
Expired / Lapsed
US
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Measuring implement
Assignee: MAXWELL R GINSBERG
•
Filing: 1944-05-13
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Granted: 1948-10-26
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Expires: 1964-05-13
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Jantzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:14
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US43789A
Cited
US49011A
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US399966A
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US435012A
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US997648A
Cited
FR464911A
Cited
FR20571E
Cited
US1258426A
Cited
US2188201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |