Patent US3302279A successfully refreshed from Google Patents.
US3302279A
Expired / Lapsed
US
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Method of making ballpoint-pen tips
Assignee: Individual
•
Filing: 1965-09-21
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Granted: 1967-02-07
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Expires: 1985-09-21
Abstract
No abstract record available.
Inventors
- 👤 Anthony G Rosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:30
CPC Classifications
B; B23; B23P; B23P15/00; B43; B43K; B43K1/00; B43K1/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49853
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A METHOD OF MAKING A BALLPOINT-PEN TIP FROM A BODY HAVING AN AXIS, COMPRISING THE STEPS OF: (A) FORMING AT A FORWARD AXIAL END OF SAID BODY A RECESS OPEN OUTWARDLY AT SAID END; (B) THEN FORMING IN SAID BODY AN AXIALLY EXTENDING INK-SUPPLY BORE COAXIALLY ALIGNED WITH SAID RECESS AND TERMINATING THEREAT SO AS TO DEFINE AN ANNULAR LOWER WALL AT THE JUNCTION BETWEEN SAID RECESS AND SAID BORE; (C) THERAFTER CUTTING SAID LOWER WALL OF SAID RECESS TO FORM AN ANNULAR SEAT SURROUNDING SAID AXIS AND SAID BORE WHILE CONFORMING TO A SPHERICAL SECTOR OF A BALL; (D) THEN FORMING IN SAID BODY AT LEAST ONE AXIALLY EXTENDING CHANNEL COMMUNICATING WITH SAID BORE AND TERMINATING AT SAID SEAT BODY FORCING A FLUTING TOOL INTO SAID BODY THROUGH SAID END AND SAID RECESS; (E) BURNISHING SAID SEAT WITHOUT SUBSTANTIAL REMOVAL THEREFROM; AND (F) INSERTING INTO SAID RECESS A BALL HAVING A PERIPHERY CONFORMING TO SAID SEAT AND ROTATABLY FIXING SAID BALL IN SAID RECESS.
Claim 2
Independent Claim
165 words
A METHOD OF MAKING A BALLPOINT-PEN TIP FROM A BODY HAVING AN AXIS, COMPRISING THE STEPS OF: (A) FORMING AT A FORWARD AXIAL END OF SAID BODY A RECESS OPEN OUTWARDLY AT SAID END; (B) THEN FORMING IN SAID BODY AN AXIALLY EXTENDING INK-SUPPLY BORE COAXIALLY ALIGNED WITH SAID RECESS AND TERMINATING THEREAT SO AS TO DEFINE AN ANNULAR LOWER WALL AT THE JUNCTION BETWEEN SAID RECESS AND SAID BORE; (C) THERAFTER CUTTING SAID LOWER WALL OF SAID RECESS TO FORM AN ANNULAR SEAT SURROUNDING SAID AXIS AND SAID BORE WHILE CONFORMING TO A SPHERICAL SECTOR OF A BALL; (D) THEN FORMING IN SAID BODY AT LEAST ONE AXIALLY EXTENDING CHANNEL COMMUNICATING WITH SAID BORE AND TERMINATING AT SAID SEAT BODY FORCING A FLUTING TOOL INTO SAID BODY THROUGH SAID END AND SAID RECESS; (E) BURNISHING SAID SEAT WITHOUT SUBSTANTIAL REMOVAL THEREFROM; AND (F) INSERTING INTO SAID RECESS A BALL HAVING A PERIPHERY CONFORMING TO SAID SEAT AND ROTATABLY FIXING SAID BALL IN SAID RECESS.
References Cited (Backward Citations)
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US2718051A
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US2536124A
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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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |