Patent US2732322A successfully refreshed from Google Patents.
US2732322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
murray
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:58
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
THE METHOD OF CLEANING METALLIC FILAMENTS, WHICH COMPRISES ADVANCING A FILAMENT ALONG A PREDETERMINED PATH, SIMULTANEOUSLY SCOURING AND APPLYING A LIQUID SOLVENT TO THE FILAMENT, THEN ADVANCING THE FILAMENT THROUGH AN ATMOSPHERE OF VAPORIZED SOLVENT, CONDENSING THE SOLVENT VAPOR ONTO THE FILAMENT, PRECIPITATING SOLVENT VAPOR ABOVE THE FILAMENT SO THAT DROPS OF SOLVENT FALL ONTO AND DRENCH THE ADVANCING FILAMENT, AND THEN HEATING THE FILAMENT TO DRY IT.
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Cited
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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) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |