Patent US2810426A successfully refreshed from Google Patents.
US2810426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reticulated webs and method and apparatus for their production
Assignee: Akzo Nobel UK PLC
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Filing: 1953-12-24
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Granted: 1957-10-22
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Expires: 1973-12-24
Abstract
No abstract record available.
Inventors
- 👤 Derek E Till
- 👤 Carl R Smallman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:02
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/0007; D01D5/0061; D01D5/0069; B; B28; B28B; B28B5/00; B28B7/00; B28B7/24; B28B7/241; B28B7/243; D01D5/0015; D01D5/003; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/56; Y; Y10; Y10S; Y10S264/00; Y10S264/75; Y10S55/00; Y10S55/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
APPARATUS FOR THE PRODUCTION OF PERMEABLE, RETICULATED, FIBROUS BODIES OF FIBER-FORMING ORGANIC MATERIALS WHICH COMPRISES A CHAMBER; MEANS INCLUDING A GAS NOZZLE FOR PASSING A STREAM OF GAS AT A HIGH VELOCITY THROUGH THE CHAMBER; MEANS INCLUDING A SPRAYING TUBE TERMINATING AT A POINT BEYOND THE END OF THE GAS NOZZEL FOR EXTRUDING A SPARYING LIQUID CONTAING A FIBER-FORMING ORGANIC MATERIAL INTO AND WITHIN THE HIGH VELOCITY STREAM OF GAS AT A POINT BEYOND THE END OF THE GAS NOZZEL THEREBY ATTENUATING THE EXTRUDE LIQUID AND BREAKING THE EXTRUDED LIQUID TO FORM DISCONTINUOUS FIBERS; MEANS INCLUDING A SOURCE OF HIGH POTENTIAL AND TWO ELECTRODES CONNECTED ELECTRICALLY TO ONE SIDE OF THE HIGH PONTENTIAL SOURCE, ONE OF THE ELECTRODES BEING POSITIONED IN CLOSE PROXIMITY TO THE GAS NOZZLE AND THE SPRAYING TUBE FOR INDUCING AN ELECTRICAL CHARGE ON THE EXTRUDED FIBER-FORMING LIQUID AND THE FIBERS, AND THE OTHER OF THE ELECTRODES BEING POSITIONED REMOTELY FROM THE GAS NOZZLE AND THE SPRAYING LIQUID TUBE IN THE PATH OF THE STREAM OF GAS; AND MEANS FOR COLLECTING THE CHARGED FIBERS.
Claim 2
Dependent Claim
177 words
APPARATUS FOR THE PRODUCTION OF PERMEABLE, RETICULATED, FIBROUS BODIES OF FIBER-FORMING ORGANIC MATERIALS WHICH COMPRISES A CHAMBER; MEANS INCLUDING A GAS NOZZLE FOR PASSING A STREAM OF GAS AT A HIGH VELOCITY THROUGH THE CHAMBER; MEANS INCLUDING A SPRAYING TUBE TERMINATING AT A POINT BEYOND THE END OF THE GAS NOZZEL FOR EXTRUDING A SPARYING LIQUID CONTAING A FIBER-FORMING ORGANIC MATERIAL INTO AND WITHIN THE HIGH VELOCITY STREAM OF GAS AT A POINT BEYOND THE END OF THE GAS NOZZEL THEREBY ATTENUATING THE EXTRUDE LIQUID AND BREAKING THE EXTRUDED LIQUID TO FORM DISCONTINUOUS FIBERS; MEANS INCLUDING A SOURCE OF HIGH POTENTIAL AND TWO ELECTRODES CONNECTED ELECTRICALLY TO ONE SIDE OF THE HIGH PONTENTIAL SOURCE, ONE OF THE ELECTRODES BEING POSITIONED IN CLOSE PROXIMITY TO THE GAS NOZZLE AND THE SPRAYING TUBE FOR INDUCING AN ELECTRICAL CHARGE ON THE EXTRUDED FIBER-FORMING LIQUID AND THE FIBERS, AND THE OTHER OF THE ELECTRODES BEING POSITIONED REMOTELY FROM THE GAS NOZZLE AND THE SPRAYING LIQUID TUBE IN THE PATH OF THE STREAM OF GAS; AND MEANS FOR COLLECTING THE CHARGED FIBERS.
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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |