US3406619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash attachment device for photographic cameras
Assignee: Hittech Prontor GmbH
•
Filing: 1965-04-01
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Granted: 1968-10-22
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Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 Waldemar T Rentschler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:42
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/0452; G03B15/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1243380A
Cited
US3072028A
Cited
US3072030A
Cited
US3283681A
Cited
US3147680A
Cited
US3286612A
Cited
US3318215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |