Patent US2852976A successfully refreshed from Google Patents.
US2852976A
Expired / Lapsed
US
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Optical device for fine adjustment of movable machine parts, including photo-electric indicating means
Assignee: Herbert Lindner GmbH
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Filing: 1954-03-16
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Granted: 1958-09-23
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Expires: 1974-03-16
Abstract
No abstract record available.
Inventors
- 👤 Hoffmann Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:35
CPC Classifications
B; B23; B23B; B23B39/00; B23B39/04; G; G01; G01B; G01B11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1794341A
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US2141175A
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US2039231A
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US2406299A
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US2401712A
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US2628539A
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US2445044A
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US2557219A
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US2703505A
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US2720810A
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GB684435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |