US3390931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic eyepiece assembly with shutter means
Assignee: United States Department of the Army
•
Filing: 1965-07-22
•
Granted: 1968-07-02
•
Expires: 1985-07-22
Abstract
No abstract record available.
Inventors
- 👤 Alfred O Luning
- 👤 Tom E Moore
- 👤 Carlyle D Charlton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:53
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA662483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |