Patent US2986069A successfully refreshed from Google Patents.
US2986069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectors
Assignee: American Optical Corp
•
Filing: 1956-12-05
•
Granted: 1961-05-30
•
Expires: 1976-12-05
Abstract
No abstract record available.
Inventors
- 👤 John F Herrmann
- 👤 Richard M Gile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:53
CPC Classifications
G; G03; G03B; G03B23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US482238A
Cited
US2519251A
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US773786A
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US1001965A
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US2590492A
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US2596665A
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US2671378A
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US2677986A
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US2696961A
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US2756630A
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US2711602A
Cited
US2878719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |