Patent US3654192A successfully refreshed from Google Patents.
US2440906A
Expired / Lapsed
US
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Light controlling mechanism for film printing machines
Assignee: ASSOCIATED SCREEN NEWS Ltd
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Filing: 1945-02-14
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Granted: 1948-05-04
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Expires: 1965-02-14
Abstract
No abstract record available.
Inventors
- 👤 Maurice T Metzger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:46
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1480514A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |