US2513673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture film projecting machine and sound-producing means
Assignee: Individual
•
Filing: 1947-07-01
•
Granted: 1950-07-04
•
Expires: 1967-07-01
Abstract
No abstract record available.
Inventors
- 👤 Prell Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:54
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1674946A
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US1460590A
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US1468547A
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US1967161A
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US2180638A
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US2265992A
Cited
US2231395A
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US2290287A
Cited
US2342874A
Cited
US2312294A
Cited
US2361398A
Cited
US2322023A
Cited
US2401434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |