US3376089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed optical shutter
Assignee: Bausch and Lomb Inc
•
Filing: 1966-04-25
•
Granted: 1968-04-02
•
Expires: 1986-04-25
Abstract
No abstract record available.
Inventors
- 👤 Eugene C Letter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:26
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AN OPTICAL SHUTTER COMPRISING AN ELECTRICALLY CONDUCTING REFLECTIVE FILM CONSISTING ESSENTIALLY OF MAGNESIUM, AND MEANS FOR APPLYING SUFFICIENT HIGH VOLTAGE ELECTRICAL ENERGY ACROSS SAID FILM TO REMOVE THE FILM AND DESTROY THE REFLECTIVITY OF THE OPTICAL SHUTTER.
Claim 2
Dependent Claim
37 words
AN OPTICAL SHUTTER COMPRISING AN ELECTRICALLY CONDUCTING REFLECTIVE FILM CONSISTING ESSENTIALLY OF MAGNESIUM, AND MEANS FOR APPLYING SUFFICIENT HIGH VOLTAGE ELECTRICAL ENERGY ACROSS SAID FILM TO REMOVE THE FILM AND DESTROY THE REFLECTIVITY OF THE OPTICAL SHUTTER.
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) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |