Patent US6319381B1 successfully refreshed from Google Patents.
US2423967A
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US
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Sighting device for moving picture cameras
Assignee: SUZANNE ROSALIE MATHOT
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Filing: 1938-11-15
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Granted: 1947-07-15
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Expires: 1958-11-15
Abstract
No abstract record available.
Inventors
- 👤 Dalotel Maurice Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:36
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1767847A
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US1744788A
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US1998568A
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US2180013A
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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) | 1950-07-14 | 1951-01-13 | 1951-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-14 | 1955-01-13 | 1955-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-14 | 1959-01-13 | 1959-07-15 | $7700.00 | Window Closed / Lapsed |