US3020119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for recording light spot traces on film
Assignee: Individual
•
Filing: 1959-04-16
•
Granted: 1962-02-06
•
Expires: 1979-04-16
Abstract
No abstract record available.
Inventors
- 👤 Marchal Maurice
- 👤 Marchal Marie-Therese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:34
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/14; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1502; Y10T74/18; Y10T74/1856
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1812083A
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US1871380A
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US2064790A
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US2189583A
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GB520693A
Cited
US2464209A
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US2514578A
Cited
US2615778A
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US2672786A
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US2747460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |