US2569579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection measuring device with screen and scale sections
Assignee: Ernst Leitz Wetzlar GmbH
•
Filing: 1950-06-02
•
Granted: 1951-10-02
•
Expires: 1970-06-02
Abstract
No abstract record available.
Inventors
- 👤 Rinker Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:15
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/02; G01B11/06; G01D; G01D7/00; G01D7/02; G01D7/04; G01D7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1939161A
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US2150398A
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US2176673A
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US2288243A
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US2322813A
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US2471800A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |