US2632362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projecting machine for projecting from stacks of individually framed films
Assignee: Individual
•
Filing: 1950-12-30
•
Granted: 1953-03-24
•
Expires: 1970-12-30
Abstract
No abstract record available.
Inventors
- 👤 Robert P Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:14
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/04; G03B23/042; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1518; Y10T74/1523
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US595165A
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US1159681A
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US1288730A
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US1298417A
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DE374936C
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US1839545A
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US1752952A
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US2260660A
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CH242879A
Cited
US2298413A
Cited
US2496724A
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US2533441A
Cited
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 |