Patent US4358488A successfully refreshed from Google Patents.
Patent US3204089A successfully refreshed from Google Patents.
US3204089A
Expired / Lapsed
US
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Electronic flash unit
Assignee: Loewe Opta GmbH
•
Filing: 1962-10-22
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Granted: 1965-08-31
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Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:49
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; F; F21; F21L; F21L4/00; G03B2215/00; G03B2215/05; G03B2215/0514; G03B2215/0517
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US682742A
Cited
US2624831A
Cited
US3077534A
Cited
US3018707A
Cited
US3113495A
Cited
US3049611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |