Patent US2684318A successfully refreshed from Google Patents.
US2684318A
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Method for fabricating glass rods
Assignee: BERNHARD C HAGQUIST
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Filing: 1950-04-03
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Granted: 1954-07-20
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Expires: 1970-04-03
Abstract
No abstract record available.
Inventors
- 👤 Melvin J Meek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:31
CPC Classifications
B; B29; B29B; B29B15/00; B29B15/08; B29B15/10; B29B15/12; B29B15/122; B29B15/125; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/52; B29C70/521; Y; Y10; Y10S; Y10S273/00; Y10S273/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD FOR PRODUCING RESILIENT SOLID GLASS RODS COMPRISING THE STEPS OF CONTINUOUSLY DRAWING A PLURALITY OF GLASS THREADS THROUGH A BATH OF LIQUID HEAT-HARDENABLE RESIN, GATHERING SAID THREADS INTO A ROD-LIKE BUNDLE, SQUEEZING OUT AIR ENTRAPPED BETWEEN THE GATHERED THREADS, COMPRESSING SAID ROD-LIKE BUNDLE INTO A PREDETERMINED CROSS-SECTIONAL SHAPE AND SIZE, PASSING SAID BUNDLE THROUGH AN OVEN FOR CURING THE RESIN, AND CUTTING THE CURED BUNDLES INTO DESIRED LENGTHS, SAID THREADS MAINTAINED IN TENSION DURING THE CURING STEP.
Claim 2
Independent Claim
79 words
A METHOD FOR PRODUCING RESILIENT SOLID GLASS RODS COMPRISING THE STEPS OF CONTINUOUSLY DRAWING A PLURALITY OF GLASS THREADS THROUGH A BATH OF LIQUID HEAT-HARDENABLE RESIN, GATHERING SAID THREADS INTO A ROD-LIKE BUNDLE, SQUEEZING OUT AIR ENTRAPPED BETWEEN THE GATHERED THREADS, COMPRESSING SAID ROD-LIKE BUNDLE INTO A PREDETERMINED CROSS-SECTIONAL SHAPE AND SIZE, PASSING SAID BUNDLE THROUGH AN OVEN FOR CURING THE RESIN, AND CUTTING THE CURED BUNDLES INTO DESIRED LENGTHS, SAID THREADS MAINTAINED IN TENSION DURING THE CURING STEP.
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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) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |