Patent JPH0223669A successfully refreshed from Google Patents.
US2604271A
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US
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Projection and rewinding system for motion-picture projectors
Assignee: De Jur AMSCO Corp
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Filing: 1946-10-17
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Granted: 1952-07-22
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Expires: 1966-10-17
Abstract
No abstract record available.
Inventors
- 👤 Lewis H Moomaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:15
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310211A
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US1234136A
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US1861584A
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US2049944A
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US2217183A
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US2245017A
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US2196738A
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US2158873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |