US3073210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prismatic reflecting device
Assignee: Individual
•
Filing: 1959-01-19
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Granted: 1963-01-15
•
Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Packard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/04; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/68; Y; Y10; Y10S; Y10S362/00; Y10S362/812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PRISMATIC REFLECTING DEVICE COMPRISING: A BODY OF OPTICAL MATERIAL HAVING A CYLINDRICAL OUTER SURFACE; SAID BODY HAVING A THROUGH OPENING AXIALLY THEREOF; THE ENTIRE UPPER SURFACE OF SAID BODY BEING NORMAL TO SAID CYLINDRICAL SURFACE AND DISPOSED BETWEEN SAID OPENING AND SAID CYLINDRICAL SURFACE; SAID THROUGH OPENING DEFINING A CONICAL SURFACE CONVERGING FROM THE LOWER EDGE OF SAID CYLINDRICAL SURFACE TOWARD SAID ANNULAR UPPER SURFACE; THE RELATIVE ARRANGEMENT OF SAID SURFACES CAUSING TO BE VISIBLE AT SAID UPPER SURFACE THE REFLECTION OF AN OBJECT PLACED ADJACENT OR ON SAID CYLINDRICAL OUTER SURFACE.
Claim 2
Dependent Claim
93 words
A PRISMATIC REFLECTING DEVICE COMPRISING: A BODY OF OPTICAL MATERIAL HAVING A CYLINDRICAL OUTER SURFACE; SAID BODY HAVING A THROUGH OPENING AXIALLY THEREOF; THE ENTIRE UPPER SURFACE OF SAID BODY BEING NORMAL TO SAID CYLINDRICAL SURFACE AND DISPOSED BETWEEN SAID OPENING AND SAID CYLINDRICAL SURFACE; SAID THROUGH OPENING DEFINING A CONICAL SURFACE CONVERGING FROM THE LOWER EDGE OF SAID CYLINDRICAL SURFACE TOWARD SAID ANNULAR UPPER SURFACE; THE RELATIVE ARRANGEMENT OF SAID SURFACES CAUSING TO BE VISIBLE AT SAID UPPER SURFACE THE REFLECTION OF AN OBJECT PLACED ADJACENT OR ON SAID CYLINDRICAL OUTER SURFACE.
References Cited (Backward Citations)
US888236A
Cited
US1658509A
Cited
FR704471A
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US2173316A
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US2244235A
Cited
US2299682A
Cited
US2430616A
Cited
US2696550A
Cited
US2846970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |