US3277564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of simultaneously forming a plurality of filaments
Assignee: Roehr Products Co Inc
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Filing: 1965-06-14
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Granted: 1966-10-11
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Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Harold H Webber
- 👤 Albert H Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:02
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/04; B21C37/047; Y; Y10; Y10S; Y10S57/00; Y10S57/901; Y10S72/00; Y10S72/70; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T29/4902; Y10T29/49075; Y10T29/49078; Y10T29/49616; Y10T29/49622; Y10T29/49789; Y10T29/49798; Y10T29/49801; Y10T29/4981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
THE METHOD OF FORMING A TOW OF SUBSTANTIALLY BARE FILAMENTS COMPRISING THE STEPS OF: SHEATHING EACH OF A PLURALITY OF ELONGATED DRAWABLE METAL ELEMENTS FROM WHICH THE FILAMENTS ARE TO BE FORMED WITH A TUBULAR SHEATH FORMED OF A MATERIAL HAVING CHARACTERISTICS PERMITTING THE SHEATHS TO BE PRESSED TOGETHER TO FORM A SUBSTANTIALLY MONOLITHIC BODY AND DIFFERING CHEMICALLY SUBSTANTIALLY FROM THOSE OF THE ELEMENTS TO PERMIT SEPARATION OF THE SHEATH MATERIAL FROM ELEMENTS WHEN DESIRED; BUNDLING THE SHEATHED ELEMENTS IN SUBSTANTIALLY PARALLEL RELATIONSHIP; MECHANICALLY WORKING THE BUNDLED SHEATHED ELEMENTS IN AT LEAST ONE WORKING STEP TO REDUCE THE CROSS-SECTION OF THE ELEMENTS TO A PRESELECTED FILAMENTS CROSSSECTION OF LESS THAN APPROXIMATELY 10 MICRONS MAXIMUM TRANSVERSE DIMENSION AND TO CAUSE THE SHEATH MATERIAL TO FORM A MATRIX EXTENDING SUBSTANTIALLY CONTINUOUSLY IN CROSS-SECTION THEREBY TO PRECLUDE SEPARATION OF INDIVIDUAL SHEATHED FILAMENTS; AND SUBSTANTIALLY COMPLETELY REMOVING THE SHEATHING MATERIAL WHILE MAINTAINING THE FILAMENTS IN BUNDLED RELATIONSHIP TO PROVIDE A TOW OF SUBSTANTIALLY BARE SEPARATE FILAMENTS.
Claim 2
Independent Claim
162 words
THE METHOD OF FORMING A TOW OF SUBSTANTIALLY BARE FILAMENTS COMPRISING THE STEPS OF: SHEATHING EACH OF A PLURALITY OF ELONGATED DRAWABLE METAL ELEMENTS FROM WHICH THE FILAMENTS ARE TO BE FORMED WITH A TUBULAR SHEATH FORMED OF A MATERIAL HAVING CHARACTERISTICS PERMITTING THE SHEATHS TO BE PRESSED TOGETHER TO FORM A SUBSTANTIALLY MONOLITHIC BODY AND DIFFERING CHEMICALLY SUBSTANTIALLY FROM THOSE OF THE ELEMENTS TO PERMIT SEPARATION OF THE SHEATH MATERIAL FROM ELEMENTS WHEN DESIRED; BUNDLING THE SHEATHED ELEMENTS IN SUBSTANTIALLY PARALLEL RELATIONSHIP; MECHANICALLY WORKING THE BUNDLED SHEATHED ELEMENTS IN AT LEAST ONE WORKING STEP TO REDUCE THE CROSS-SECTION OF THE ELEMENTS TO A PRESELECTED FILAMENTS CROSSSECTION OF LESS THAN APPROXIMATELY 10 MICRONS MAXIMUM TRANSVERSE DIMENSION AND TO CAUSE THE SHEATH MATERIAL TO FORM A MATRIX EXTENDING SUBSTANTIALLY CONTINUOUSLY IN CROSS-SECTION THEREBY TO PRECLUDE SEPARATION OF INDIVIDUAL SHEATHED FILAMENTS; AND SUBSTANTIALLY COMPLETELY REMOVING THE SHEATHING MATERIAL WHILE MAINTAINING THE FILAMENTS IN BUNDLED RELATIONSHIP TO PROVIDE A TOW OF SUBSTANTIALLY BARE SEPARATE FILAMENTS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |