US3060823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precise light metering means for single lens reflex cameras
Assignee: Individual
•
Filing: 1960-07-14
•
Granted: 1962-10-30
•
Expires: 1980-07-14
Abstract
No abstract record available.
Inventors
- 👤 Noel R Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:43
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/12; G03B7/00; G03B7/08; G03B7/099; G03B7/0993; G03B7/0997; G03B7/09971; G03B7/09976
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2784654A
Cited
US1993084A
Cited
US2297428A
Cited
DE970379C
Cited
US2754735A
Cited
DE969693C
Cited
US2933991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |