Patent US2990757A successfully refreshed from Google Patents.
US2990757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic or cinematographic apparatus and the like
Assignee: CARTONNAGES D ECHANTILLONNAGE
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Filing: 1956-04-20
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Granted: 1961-07-04
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Expires: 1976-04-20
Abstract
No abstract record available.
Inventors
- 👤 Ponsar Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:48
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/099; G03B7/0993; G03B7/0997; G03B7/09971; G03B7/09977
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1980217A
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US2058531A
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US2194031A
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US2154324A
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US2187953A
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US2201606A
Cited
US2297428A
Cited
US2353218A
Cited
US2302597A
Cited
US2477235A
Cited
FR995117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |