US3716445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflex reflective sheeting
Assignee: Individual
•
Filing: 1970-06-24
•
Granted: 1973-02-13
•
Expires: 1990-06-24
Abstract
Abstract New and improved structures in reflective sheeting are provided which may be produced automatically and continuously of a single material in substantially long lengths and areas larger than heretofore possible. In one form, the material of which the reflective sheeting is made comprises a flexible transparent polymer which has one or more surfaces of which sheeting has been embossed in a manner to reflect incident light striking the sheet back to the vicinity of the source.
Inventors
- 👤 J Lemelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:09
CPC Classifications
B; B44; B44F; B44F1/00; B44F1/02; B44F1/04; G; G02; G02B; G02B5/00; G02B5/12; G02B5/122; G02B5/124; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24562; Y10T428/2457
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
111 words
A reflex reflecting device, comprising; a pair of transparent layers disposed one against the other, the facing surfaces of each of said layers having a multitude of cavities embossed therein, said cavities being closely spaced and having wall formations of irregular shape which are highly reflective to light, one of said layers including at least one cavity aligned with each of the cavities of the other layer to define a plurality of totally enclosed cavities, the surfaces of said totally enclosed cavities being highly reflective and shaped to focus light directed against the composited layers within said totally enclosed cavities and to reflex reflect the light back in the incident direction.
Claim 2
Dependent Claim
111 words
A reflex reflecting device, comprising; a pair of transparent layers disposed one against the other, the facing surfaces of each of said layers having a multitude of cavities embossed therein, said cavities being closely spaced and having wall formations of irregular shape which are highly reflective to light, one of said layers including at least one cavity aligned with each of the cavities of the other layer to define a plurality of totally enclosed cavities, the surfaces of said totally enclosed cavities being highly reflective and shaped to focus light directed against the composited layers within said totally enclosed cavities and to reflex reflect the light back in the incident direction.
Claim 3
Dependent Claim
16 words
A device in accordance with claim 1 wherein said totally enclosed cavities are spherical in shape.
Claim 4
Dependent Claim
16 words
A device in accordance with claim 1 wherein said totally enclosed cavities are cylindrical in shape.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |