US3502011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic cameras with an exposure indicating circuit
Assignee: Hittech Prontor GmbH
•
Filing: 1966-03-04
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Granted: 1970-03-24
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Expires: 1986-03-04
Abstract
No abstract record available.
Inventors
- 👤 Waldemar T Rentschler
- 👤 Winfried Espig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:52
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081; G03B7/083
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) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |