Patent US2493740A successfully refreshed from Google Patents.
US2493740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber treatment
Assignee: Johnson and Johnson
•
Filing: 1945-10-19
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Granted: 1950-01-10
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Expires: 1965-10-19
Abstract
No abstract record available.
Inventors
- 👤 Whitney R Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:46
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A CONTINUOUS PROCESS OF TREATING LOOSE FIBER WITH A LIQUID REAGENT WHICH CONSISTS IN FORMING A SELF-SUSTAINING PLUG OF LOOSE FIBERS IN A CONDUIT HAVING AN OUTLET, CONTINUOUSLY SUPPLYING REAGENT TO THE CONDUIT BEHIND THE PLUG AND MAINTAINING SUFFICIENT PRESSURE OF THE REAGENT BEHIND THE PLUG TO EJECT THE PLUG PROGRESSIVELY FROM THE CONDUIT, THE REAGENT BEING SUPPLIED AT SUFFICIENT VOLUMETRIC RATE TO FLOW THE REAGENT THRU THE PLUG AT SUBSTANTIAL LINEAR VELOCITY WHILE THE PLUG IS BEING EJECTED, AND CONTINUOUSLY REBUILDING THE PLUG BY SUPPLYING LOOSE FIBERS TO THE REAGENT SUBSTANTIALLY AT THE RATE THE FIBERS ARE EJECTED IN THE PLUG, WHEREBY REAGENT CARRIES FIBERS TO THE EXISTING PLUG AND DEPOSITS THEM THEREON.
Claim 2
Dependent Claim
114 words
A CONTINUOUS PROCESS OF TREATING LOOSE FIBER WITH A LIQUID REAGENT WHICH CONSISTS IN FORMING A SELF-SUSTAINING PLUG OF LOOSE FIBERS IN A CONDUIT HAVING AN OUTLET, CONTINUOUSLY SUPPLYING REAGENT TO THE CONDUIT BEHIND THE PLUG AND MAINTAINING SUFFICIENT PRESSURE OF THE REAGENT BEHIND THE PLUG TO EJECT THE PLUG PROGRESSIVELY FROM THE CONDUIT, THE REAGENT BEING SUPPLIED AT SUFFICIENT VOLUMETRIC RATE TO FLOW THE REAGENT THRU THE PLUG AT SUBSTANTIAL LINEAR VELOCITY WHILE THE PLUG IS BEING EJECTED, AND CONTINUOUSLY REBUILDING THE PLUG BY SUPPLYING LOOSE FIBERS TO THE REAGENT SUBSTANTIALLY AT THE RATE THE FIBERS ARE EJECTED IN THE PLUG, WHEREBY REAGENT CARRIES FIBERS TO THE EXISTING PLUG AND DEPOSITS THEM THEREON.
References Cited (Backward Citations)
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US1041031A
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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) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |