Patent US3097056A successfully refreshed from Google Patents.
US3097056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melt-spinning of polymers
Assignee: PPG Architectural Coatings Canada Inc
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Filing: 1962-02-05
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Granted: 1963-07-09
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Expires: 1982-02-05
Abstract
No abstract record available.
Inventors
- 👤 Rowlinson Hugh Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:50
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN A PROCESS FOR THE CONTINUOUS MULTIFICAMENT MELTSPINNING OF A FIBER-FORMING POLYMER WHEREIN SAID POLYMER IN MELT BY HEATING AND FORCED UNDER PRESSURE THROUGH A PLURALITY OF FINE HOLES IN A SPINNERET PLATE, THE IMPROVEMENT WHICH COMPRISES INSULATING SAID SPINNERET PLATE FROM GROUND AND APPLYING TO SAID PLATE A SUBSTANTIAL ELECTRICAL POTENTIAL.
Claim 2
Dependent Claim
52 words
IN A PROCESS FOR THE CONTINUOUS MULTIFICAMENT MELTSPINNING OF A FIBER-FORMING POLYMER WHEREIN SAID POLYMER IN MELT BY HEATING AND FORCED UNDER PRESSURE THROUGH A PLURALITY OF FINE HOLES IN A SPINNERET PLATE, THE IMPROVEMENT WHICH COMPRISES INSULATING SAID SPINNERET PLATE FROM GROUND AND APPLYING TO SAID PLATE A SUBSTANTIAL ELECTRICAL POTENTIAL.
References Cited (Backward Citations)
US2338570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |