US3822158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of refurbishing reflective-type pavement markers
Assignee: Individual
•
Filing: 1972-08-14
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Granted: 1974-07-02
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Expires: 1992-08-14
Abstract
Abstract A METHOD OF REFURBISHING A DETERIORATED LIGHT-RECEIVING FACE OF REFLECTIVE-TYPE PAVEMENT MARKER COMPRISING REMOVING THE OUTER SURFACE OF A DETERIORATED LIGHT-RECEIVING FACE, AS BY MECHANCIAL ABRASION, APPLYING AN ADHESIVE COATING TO THE ABRADED LIGHT-RECEIVING SURFACE, POSITIONING A TRANSPARENT PANE, AS OF HIGH-IMPACT HIGH-ABRASION GLASS, ACRYLIC OR OTHER SIMILAR MATERIAL AND SUBJECTING THE RESULTANT STRUCTURE TO CURING CONDITIONS SUFFICIENT TO FORM A UNITARY REFURBISHED LIGHT-RECEIVING FACE.
Inventors
- 👤 K Hoffman
- 👤 K Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:23
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00605; B29C; B29C65/00; B29C65/48; B29C65/4805; B29C65/483; B29C65/4835; B29C65/484; B29C66/00; B29C66/70; B29C66/71
Claims Analysis
Total Claims: 0
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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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |