US3677786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line drawing and marking system
Assignee: Teledyne Inc
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Filing: 1969-10-10
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Granted: 1972-07-18
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Expires: 1989-10-10
Abstract
Abstract LINE DRAWING AND MARKING SYSTEM CHARACTERIZED BY HIGH SPEED OPERATION WHICH ADAPTS IT TO COMPUTER-CONTROLLED RECORDING AND PLOTTING. LINES OR OTHER MARKINGS ARE FORMED ON A SURFACE OR SUBSTRATE BEARING A COLORFORMING IODINE REACTIVE SUBSTANCE AND AN AGENT FOR RELEASING FREE IODINE FROM ALKALI METAL OR AMMONIUM IODIDE SOLUTION BY APPLYING SUCH A SOLUTION TO EACH AREA OF THE SURFACE WHERE A LINE OR OTHER MARK IS DESIRED. THE SURFACE ON WHICH A LINE OR OTHER MARKINGS ARE FORMED MAY BE ANY, SUITABLE WEB SUCH AS PAPER OR FILM AND THE ALKALI METAL IODIDE SOLUTION MAY BE APPLIED MANUALLY OR BY AN ELECTRONICALLY CONTROLLED PEN.
Inventors
- 👤 Walter G Hollmann
- 👤 Frederick M Lozo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:33
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/26; B41M1/36; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/2481; Y10T428/24835; Y10T428/24934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |