US3427628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic recording
Assignee: 3M Co
•
Filing: 1962-08-15
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Granted: 1969-02-11
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Expires: 1982-08-15
Abstract
No abstract record available.
Inventors
- 👤 Kenneth Clunis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/80; H04N5/82; H04N5/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A METHOD OF RECORDING AND REPRODUCING INFORMATION ON A MEDIUM HAVING A THERMOPLASTIC LAYER ON ONE SURFACE OF THE MEDIUM AND HAVING AN UPWARDLY EXTENDING RIDGE ON THE THERMOPLASTIC LAYER TO SERVE AS A RECORDING SURFACE, INCLUDING THE STEPS OF: PROVIDING A MOVEMENT OF THE MEDIUM IN A PARTICULAR DIRECTION, PROVIDING A FIRST BEAM OF ENERGY HAVING CHARACTERISTICS IN ACCORDANCE WITH THE CHARACTERISTICS OF THE INFORMATION AND WITH THE FIRST BEAM OF ENERGY PROVIDING A HEATING OF THE THERMOPLASTIC LAYER ON THE MEDIUM, DIRECTING THE FIRST BEAM OF ENERGY TOWARD THE UPWARDLY EXTENDING RIDGE ON THE MEDIUM DURING THE MOVEMENT OF THE MEDIUM IN THE PARTRICULAR DIRECTION TO VARY THE SURFACE CHARACTERISTICS ALONG THE UPWARDLY EXTENDING RIDGE ON THE MEDIUM IN ACCORDANCE WITH THE CHARACTERISTICS OF THE FIRST BEAM OF ENERGY, PROVIDING A SECOND BEAM OF ENERGY, AND DIRECTING THE SECOND BEAM OF ENERGY TOWARD THE RIDGE ON THE MEDIUM TO PRODUCE VARIATIONS IN THE CHARAC-
Claim 2
Independent Claim
156 words
A METHOD OF RECORDING AND REPRODUCING INFORMATION ON A MEDIUM HAVING A THERMOPLASTIC LAYER ON ONE SURFACE OF THE MEDIUM AND HAVING AN UPWARDLY EXTENDING RIDGE ON THE THERMOPLASTIC LAYER TO SERVE AS A RECORDING SURFACE, INCLUDING THE STEPS OF: PROVIDING A MOVEMENT OF THE MEDIUM IN A PARTICULAR DIRECTION, PROVIDING A FIRST BEAM OF ENERGY HAVING CHARACTERISTICS IN ACCORDANCE WITH THE CHARACTERISTICS OF THE INFORMATION AND WITH THE FIRST BEAM OF ENERGY PROVIDING A HEATING OF THE THERMOPLASTIC LAYER ON THE MEDIUM, DIRECTING THE FIRST BEAM OF ENERGY TOWARD THE UPWARDLY EXTENDING RIDGE ON THE MEDIUM DURING THE MOVEMENT OF THE MEDIUM IN THE PARTRICULAR DIRECTION TO VARY THE SURFACE CHARACTERISTICS ALONG THE UPWARDLY EXTENDING RIDGE ON THE MEDIUM IN ACCORDANCE WITH THE CHARACTERISTICS OF THE FIRST BEAM OF ENERGY, PROVIDING A SECOND BEAM OF ENERGY, AND DIRECTING THE SECOND BEAM OF ENERGY TOWARD THE RIDGE ON THE MEDIUM TO PRODUCE VARIATIONS IN THE CHARAC-
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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |