US3537376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light lock for the entrance/exit passageway of a container for light-sensitive material
Assignee: Eastman Kodak Co
•
Filing: 1967-11-20
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Granted: 1970-11-03
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Expires: 1987-11-20
Abstract
No abstract record available.
Inventors
- 👤 Paul J Fleming
- 👤 Arthur C Rissberger Jr
- 👤 Lawrence A Ulmschneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:05
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; G03B2217/00; G03B2217/26; G03B2217/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |