Patent US3001079A successfully refreshed from Google Patents.
US3001079A
Expired / Lapsed
US
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Optical devices for producing parallel beams
Assignee: Individual
•
Filing: 1959-06-19
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Granted: 1961-09-19
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Expires: 1979-06-19
Abstract
No abstract record available.
Inventors
- 👤 Harald W Straub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:39
CPC Classifications
G; G02; G02B; G02B19/00; G02B19/0004; G02B19/0019; G02B19/0023; G02B19/0033; G02B19/0076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1385657A
Cited
US1718999A
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US2721275A
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US2057395A
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FR1045818A
Cited
US2668867A
Cited
US2674700A
Cited
FR1149437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |