Patent US3120215A successfully refreshed from Google Patents.
US3120215A
Expired / Lapsed
US
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Recorder pen
Assignee: Applied Biosystems Inc
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Filing: 1961-03-15
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Granted: 1964-02-04
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Expires: 1981-03-15
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Scalo
- 👤 Lawrence L Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:22
CPC Classifications
B; B43; B43K; B43K8/00; B43K8/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A RECORDER PEN WHICH COMPRISES A FIRST BODY PORTION DEFINING A FIRST INK STORAGE CHAMBER; A SECOND BODY PORTION DEFINING A SECOND INK STORAGE CHAMBER, EACH OF SAID FIRST AND SECOND CHAMBERS BEING OF GREATER THAN CAPILLARY SIZE; TUBULAR INK CONDUCTING MEANS HAVING AN INTERNAL DIAMETER OF GREATER THAN CAPILLARY SIZE IN CONNECTING RELATIONSHIP BETWEEN SAID FIRST AND SECOND CHAMBERS TO PROVIDE FLUID FLOW THEREBETWEEN; ELONGATED TUBULAR MARKING NIB MEANS COMMUNICATING WITH SAID SECOND INK STORAGE CHAMBER; ELONGATED WIRE-LIKE MEANS CONTAINED IN SAID PEN NIB MEANS, HAVING ONE END PROTRUDING THEREFROM, AND RESILIENTLY LONGITUDINALLY MOVABLE THEREIN WHEREBY THE PROTRUDING END IS ENTIRELY DEPRESSED INTO THE NIB BY THE SURFACE TO BE MARKED, THE OUTER SURFACE OF SAID WIRE-LIKE MEANS AND THE INNER SURFACE OF SAID PEN NIB MEANS DEFINING AN ANNULAR CAPILLARY INK PASSAGE; AND ATMOSPHERIC VENT MEANS COMMUNICATING BETWEEN SAID SECOND INK STORAGE CHAMBER AND THE ATMOSPHERE.
Claim 2
Dependent Claim
148 words
A RECORDER PEN WHICH COMPRISES A FIRST BODY PORTION DEFINING A FIRST INK STORAGE CHAMBER; A SECOND BODY PORTION DEFINING A SECOND INK STORAGE CHAMBER, EACH OF SAID FIRST AND SECOND CHAMBERS BEING OF GREATER THAN CAPILLARY SIZE; TUBULAR INK CONDUCTING MEANS HAVING AN INTERNAL DIAMETER OF GREATER THAN CAPILLARY SIZE IN CONNECTING RELATIONSHIP BETWEEN SAID FIRST AND SECOND CHAMBERS TO PROVIDE FLUID FLOW THEREBETWEEN; ELONGATED TUBULAR MARKING NIB MEANS COMMUNICATING WITH SAID SECOND INK STORAGE CHAMBER; ELONGATED WIRE-LIKE MEANS CONTAINED IN SAID PEN NIB MEANS, HAVING ONE END PROTRUDING THEREFROM, AND RESILIENTLY LONGITUDINALLY MOVABLE THEREIN WHEREBY THE PROTRUDING END IS ENTIRELY DEPRESSED INTO THE NIB BY THE SURFACE TO BE MARKED, THE OUTER SURFACE OF SAID WIRE-LIKE MEANS AND THE INNER SURFACE OF SAID PEN NIB MEANS DEFINING AN ANNULAR CAPILLARY INK PASSAGE; AND ATMOSPHERIC VENT MEANS COMMUNICATING BETWEEN SAID SECOND INK STORAGE CHAMBER AND THE ATMOSPHERE.
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) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |