US3246943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for image projection
Assignee: Individual
•
Filing: 1963-08-02
•
Granted: 1966-04-19
•
Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 James B Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:20
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
APPARATUS FOR IMPARTING AN ILLUSORY THREE-DIMENSIONAL EFFECT TO A PROJECTED IMAGE WHICH COMPRISES: (A) AN IMAGE PROJECTOR; (B) A MIRROR DISPOSED SO AS TO RECEIVE A DIRECTLY PROJECTED IMAGE FROM THE PROJECTOR AND EXPOSE A REFLECTED IMAGE FOR VIEWING; AND (C) A CURVILINEAR REFLECTOR SCREEN MOUNTED ADJACENT THE MIRROR AND DISPOSED SO AS TO RECEIVE THE IMAGE FROM THE MIRROR AND REFLECT THE IMAGE BACK ONTO THE MIRROR, FOR VIEWING OF THE REFLECTED IMAGE.
Claim 2
Dependent Claim
74 words
APPARATUS FOR IMPARTING AN ILLUSORY THREE-DIMENSIONAL EFFECT TO A PROJECTED IMAGE WHICH COMPRISES: (A) AN IMAGE PROJECTOR; (B) A MIRROR DISPOSED SO AS TO RECEIVE A DIRECTLY PROJECTED IMAGE FROM THE PROJECTOR AND EXPOSE A REFLECTED IMAGE FOR VIEWING; AND (C) A CURVILINEAR REFLECTOR SCREEN MOUNTED ADJACENT THE MIRROR AND DISPOSED SO AS TO RECEIVE THE IMAGE FROM THE MIRROR AND REFLECT THE IMAGE BACK ONTO THE MIRROR, FOR VIEWING OF THE REFLECTED IMAGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |