Patent US3061219A successfully refreshed from Google Patents.
US3061219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projector
Assignee: Argus Inc
•
Filing: 1959-04-17
•
Granted: 1962-10-30
•
Expires: 1979-04-17
Abstract
No abstract record available.
Inventors
- 👤 William A Groves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:39
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1004978A
Cited
US2313662A
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US2343850A
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US2415406A
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US2675974A
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US2624214A
Cited
US2688389A
Cited
US2666594A
Cited
US2743922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |