US3095343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating continuous filamentary tows
Assignee: Siemens Water Technologies Holding Corp
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Filing: 1960-09-15
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Granted: 1963-06-25
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Expires: 1980-09-15
Abstract
No abstract record available.
Inventors
- 👤 Richard M Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:23
CPC Classifications
B; B43; B43K; B43K15/00; B43K15/02; A; A24; A24D; A24D3/00; A24D3/02; A24D3/0229; A24D3/0233
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
IN A METHOD OF FABRICATING CELLULOSE ACETATE TOW INTO FILTER ELEMENTS, THE STEPS OF APPLYING A PLASTICIZER TO THE TOW, PASSING THE TOW THROUGH A HEATED CONFINED AREA AND INTRODUCING STREAM INTO THE TOW DURING ITS PASSAGE THROUGH SAID CONFINED AREA TO EFFECT RAPID CURING THEREOF.
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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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |