US3248165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moving screen projection system
Assignee: Individual
•
Filing: 1964-02-24
•
Granted: 1966-04-26
•
Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Alvin M Marks
- 👤 Mortimer M Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:54
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60; G03B21/604
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
AN ARTICLE OF MANUFACTURE FOR THE DIFFUSE REFLECTION OF POLARIZED LIGHT COMPRISING, A SUPPORTING LIGHT ABSORBING FILM, A POLARIZING FILM SECURED TO ONE SIDE OF THE SUPPORTING FILM FOR PLANE POLARIZING LIGHT RAYS PASSING THROUGH IT AND A DIFFUSING REFLECTING LAYER BETWEEN THE SAID SUPPORTING FILM AND POLARIZER FOR DIFFUSE REFLECTION OF THE LIGHT PASSING THROUGH THE POLARIZING FILM.
Claim 2
Dependent Claim
59 words
AN ARTICLE OF MANUFACTURE FOR THE DIFFUSE REFLECTION OF POLARIZED LIGHT COMPRISING, A SUPPORTING LIGHT ABSORBING FILM, A POLARIZING FILM SECURED TO ONE SIDE OF THE SUPPORTING FILM FOR PLANE POLARIZING LIGHT RAYS PASSING THROUGH IT AND A DIFFUSING REFLECTING LAYER BETWEEN THE SAID SUPPORTING FILM AND POLARIZER FOR DIFFUSE REFLECTION OF THE LIGHT PASSING THROUGH THE POLARIZING FILM.
References Cited (Backward Citations)
US1673793A
Cited
US2076482A
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US2086556A
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US2218875A
Cited
US2309879A
Cited
US2453075A
Cited
FR971838A
Cited
US2651233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |