US2632361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film threading means for projector apparatus
Assignee: Individual
•
Filing: 1950-02-21
•
Granted: 1953-03-24
•
Expires: 1970-02-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Krows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:15
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US790123A
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US1174208A
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GB205792A
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US1704814A
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US1711977A
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US1803313A
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US1939561A
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US2168941A
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US2257444A
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US2174660A
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US2231743A
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US2199305A
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US2438710A
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US2485709A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |