US3555806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous nylon fiber rods
Assignee: Monsanto Co
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Filing: 1968-12-18
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Granted: 1971-01-19
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Expires: 1988-12-18
Abstract
Abstract POROUS NYLON RIBER RODS ADAPTABLE FOR USE AS A WICK IN FIBER POINT PENS INCLUDE A PLURALITY OF CONTINUOUS LENGTHS OF SUBSTANTIALLY PARALLEL NYLON FIBERS WHICH ARE AUTOGENOUSLY BONDED TOGETHER ALONG SELECTED CONTIGUOUS FIBER SURFACES. THE FIBER ROD IS TWISTED HELICALLY ABOUT ITS CENTRAL AXIS AND HAS A DENSITY OF FROM ABOUT 1.00 TO ABOUT 0.60 GMS./CM.3 WHICH PROVIDES THE ROD WITH A SERIES OF INTERCONNECTING LIQUID CONDUCTING PASSAGEWAYS.
Inventors
- 👤 John P Knudsen
- 👤 William C Mallonee
- 👤 Robert E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:36
CPC Classifications
B; B43; B43K; B43K1/00; B43K1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |