Patent US3884640A successfully refreshed from Google Patents.
US2906166A
Expired / Lapsed
US
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Controlling means operatable by means of a photo-electric cell and moving coil system
Assignee: Individual
•
Filing: 1954-06-30
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Granted: 1959-09-29
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Expires: 1974-06-30
Abstract
No abstract record available.
Inventors
- 👤 Herterich Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:54
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21034E
Cited
US2058531A
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AT147358B
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FR806416A
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DE664627C
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US2150365A
Cited
US2226602A
Cited
US2242013A
Cited
FR850239A
Cited
DE894197C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |