US3500729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic camera shutter with an electronic timing device
Assignee: Hittech Prontor GmbH
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Filing: 1966-03-03
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Granted: 1970-03-17
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Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 Waldemar T Rentschler
- 👤 Winfried Espig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:09
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081; G03B7/083; G03B9/00; G03B9/64; H; H03; H03K; H03K17/00; H03K17/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |