Patent US2441687A successfully refreshed from Google Patents.
US2441687A
Expired / Lapsed
US
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Copy camera carriage supporting structure
Assignee: Individual
•
Filing: 1944-12-01
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Granted: 1948-05-18
•
Expires: 1964-12-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Crockett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:19
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1991818A
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US2150974A
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US2246502A
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US2306885A
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US2262288A
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US2289121A
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US2356960A
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US2406770A
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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) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |