US3476028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monocular narrow angle exposure meter
Assignee: Minolta Co Ltd
•
Filing: 1966-11-30
•
Granted: 1969-11-04
•
Expires: 1986-11-30
Abstract
No abstract record available.
Inventors
- 👤 Yasuhiro Namba
- 👤 Kazuo Kessoku
- 👤 Tadayoshi Fujii
- 👤 Toshinobu Ogura
- 👤 Ichiro Yoshiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:27
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081; G03B7/085; G03B7/099; G03B7/0993; G03B7/0997; G03B7/09971
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2755704A
Cited
US3093044A
Cited
US3298773A
Cited
US3272105A
Cited
US3357779A
Cited
US3332330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |