US2870671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autocollimator for measuring angle of incident light beam
Assignee: Individual
•
Filing: 1955-08-30
•
Granted: 1959-01-27
•
Expires: 1975-08-30
Abstract
No abstract record available.
Inventors
- 👤 Oscar R Falconi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:05
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01B; G01B11/00; G01B11/26; G01B11/27; G01D; G01D5/00; G01D5/26; G01D5/28; G01D5/30; G01J; G01J1/00; G01J1/42; G02; G02B; G02B27/00; G02B27/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2451409A
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US1553211A
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US2431510A
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US2713134A
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US2651771A
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US2701501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |