Patent US3555138A successfully refreshed from Google Patents.
US3555138A
Expired / Lapsed
US
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Surface halogenation of shaped articles
Assignee: Monsanto Co
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Filing: 1966-06-17
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Granted: 1971-01-12
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Expires: 1986-06-17
Abstract
Abstract A CONTINUOUS PROCESS FOR THE HALOGENATION OF MELT SPUN FILAMENTS CONSISTS OF EXTRUDING THE FILAMENTS DIRECTLY INTO A GASEOUS ATMOSPHERE COMPRISING A HALOGEN GAS WHICH ENABLES HALOGENATION TO BE ACCOMPLISHED WITHOUT THE NEED FOR EXTRANEOUS HALOGENATION INITIATORS.
Inventors
- 👤 Roland Jennings Bryan Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:06
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/07; D06M11/09; D01; D01F; D01F11/00; D01F11/04; D01F6/00; D01F6/02; D01F6/04; D01F6/58; D01F6/60; D01F6/62
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |