US2499453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lenticular picture element with reflecting back support
Assignee: RELIEPHOGRAPHIE SOC POUR L EXP
•
Filing: 1945-12-07
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Granted: 1950-03-07
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Expires: 1965-12-07
Abstract
No abstract record available.
Inventors
- 👤 Bonnet Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:53
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/18; G03B35/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1425142A
Cited
US1858975A
Cited
GB356501A
Cited
GB410517A
Cited
US2149171A
Cited
FR852964A
Cited
US2379702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |