Patent US2852425A successfully refreshed from Google Patents.
US2852425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow glass rod and method of making same
Assignee: Individual
•
Filing: 1954-09-07
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Granted: 1958-09-16
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Expires: 1974-09-07
Abstract
No abstract record available.
Inventors
- 👤 Samuel M Shobert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:34
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; Y; Y10; Y10S; Y10S273/00; Y10S273/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
THE METHOD OF MAKING HOLLOW TAPERED GLASS ROD COMPRISING THE STEPS OF WETTING A PLURALITY OF GLASS THREADS WITH A HEAT-HARDENABLE RESIN MATERIAL, GATHERING ALL OF SAID THREADS INTO AN ELONGATED TUBULAR FORM, PINCHING SAID THREADS TOGETHER AT ONE END FOR FORMING A CONICALLY-SHAPED BUNDLE WHICH IS HOLLOW, TENSIONING ALL OF SAID THREADS IN SAID BUNDLE, AND CURING SAID RESIN DURING SAID TENSIONING.
Claim 2
Independent Claim
63 words
THE METHOD OF MAKING HOLLOW TAPERED GLASS ROD COMPRISING THE STEPS OF WETTING A PLURALITY OF GLASS THREADS WITH A HEAT-HARDENABLE RESIN MATERIAL, GATHERING ALL OF SAID THREADS INTO AN ELONGATED TUBULAR FORM, PINCHING SAID THREADS TOGETHER AT ONE END FOR FORMING A CONICALLY-SHAPED BUNDLE WHICH IS HOLLOW, TENSIONING ALL OF SAID THREADS IN SAID BUNDLE, AND CURING SAID RESIN DURING SAID TENSIONING.
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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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |