Patent US3093113A successfully refreshed from Google Patents.
US3093113A
Expired / Lapsed
US
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Bichromatic fountain pen
Assignee: Individual
•
Filing: 1959-09-24
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Granted: 1963-06-11
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Expires: 1979-09-24
Abstract
No abstract record available.
Inventors
- 👤 Andres S Reynoso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:54
CPC Classifications
B; B43; B43K; B43K27/00; B43K27/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A BICHROMATIC FOUNTAIN PEN FOR SELECTIVELY WRITING WITH EITHER ONE OF TWO DIFFERENT COLORS, COMPRISING A UNITARY DOUBLE NIB, HAVING THE SHAPE OF TWO ORDINARY NIBS POSITIONED BACK TO BACK WITH A THIN DIVIDING WALL THEREBETWEEN, AND PROVIDED ON EACH SIDE WITH A CAPILLARY GROOVE OR CHANNEL, THE TIP OF SAID NIB BEING IN THE FORM OF A SMALL BALL MADE OF SUITABLE HARD METAL AND FED ON EACH SIDE BY A SEPARATE FLUID FEEDER, EACH FEEDER BEING CON-
Claim 2
Dependent Claim
79 words
A BICHROMATIC FOUNTAIN PEN FOR SELECTIVELY WRITING WITH EITHER ONE OF TWO DIFFERENT COLORS, COMPRISING A UNITARY DOUBLE NIB, HAVING THE SHAPE OF TWO ORDINARY NIBS POSITIONED BACK TO BACK WITH A THIN DIVIDING WALL THEREBETWEEN, AND PROVIDED ON EACH SIDE WITH A CAPILLARY GROOVE OR CHANNEL, THE TIP OF SAID NIB BEING IN THE FORM OF A SMALL BALL MADE OF SUITABLE HARD METAL AND FED ON EACH SIDE BY A SEPARATE FLUID FEEDER, EACH FEEDER BEING CON-
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |