Patent US2516979A successfully refreshed from Google Patents.
US2516979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic display mechanism
Assignee: —
•
Filing: —
•
Granted: 1950-08-01
•
Expires: 1967-08-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:08
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/18; G03B1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190909864A
Cited
US1128841A
Cited
US1256613A
Cited
US1815486A
Cited
US1738762A
Cited
US1827101A
Cited
US1780945A
Cited
US1933066A
Cited
US2428458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |