US3302279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making ballpoint-pen tips
Assignee: Individual
•
Filing: 1965-09-21
•
Granted: 1967-02-07
•
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 07:12
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)
GB411016A
Cited
GB613408A
Cited
US2718051A
Cited
US2536124A
Cited
US2646761A
Cited
FR1078547A
Cited
US2763970A
Cited
US3183632A
Cited
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 |