US3369926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying glass-resin coupling compositions to galss strands
Assignee: De Bell and Richardson Inc
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Filing: 1963-09-25
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Granted: 1968-02-20
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Expires: 1983-09-25
Abstract
No abstract record available.
Inventors
- 👤 William J Eakins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:28
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/38; C03C25/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
METHOD OF TREATING GLASS FIBER STRANDS FOR IMPREGNATION AND COATING WITH RESIN IN MAKING GLASS-RESIN COMPOSITE STRUCTURES OF IMPROVED PHYSICAL STRENGTH WHICH COMPRISES (1) APPLYING A TREATING SOLUTION TO THE GLASS FILAMENTS WHICH FORM THE STRANDS AS THE FILAMENTS ARE BEING FORMED, (A) SAID TREATING SOLUTION CONSISTING ESSENTIALLY OF WATER AND A COUPLING AGENT SELECTED FROM THE GROUP SONSISTING OF ALKYL ALKOXY SILANES, CHLOROSILANES AND ORGANO CHROMIC CHLORIDES, (2) WINDING THE STRANDS, AND SPINNING SAID ROLL-WOUND GLASS STRANDS, TO REMOVE SURPLUS TREATING SOLUTION, ONTO A ROLL, (3) AGAIN APPLYING SAID TREATING SOLUTION TO SAID STRANDS, (4) UNWINDING SAID STRANDS FROM SAID ROLL WHILE THE STRANDS ARE STILL MOIST,
Claim 2
Dependent Claim
108 words
METHOD OF TREATING GLASS FIBER STRANDS FOR IMPREGNATION AND COATING WITH RESIN IN MAKING GLASS-RESIN COMPOSITE STRUCTURES OF IMPROVED PHYSICAL STRENGTH WHICH COMPRISES (1) APPLYING A TREATING SOLUTION TO THE GLASS FILAMENTS WHICH FORM THE STRANDS AS THE FILAMENTS ARE BEING FORMED, (A) SAID TREATING SOLUTION CONSISTING ESSENTIALLY OF WATER AND A COUPLING AGENT SELECTED FROM THE GROUP SONSISTING OF ALKYL ALKOXY SILANES, CHLOROSILANES AND ORGANO CHROMIC CHLORIDES, (2) WINDING THE STRANDS, AND SPINNING SAID ROLL-WOUND GLASS STRANDS, TO REMOVE SURPLUS TREATING SOLUTION, ONTO A ROLL, (3) AGAIN APPLYING SAID TREATING SOLUTION TO SAID STRANDS, (4) UNWINDING SAID STRANDS FROM SAID ROLL WHILE THE STRANDS ARE STILL MOIST,
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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |