Patent US2658848A successfully refreshed from Google Patents.
US2658848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making glass paper
Assignee: Glass Fibers Inc
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Filing: 1951-11-17
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Granted: 1953-11-10
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Expires: 1971-11-17
Abstract
No abstract record available.
Inventors
- 👤 Labino Dominick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:16
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD OF MAKING GLASS PAPER THAT INCLUDES THE STEPS OF (A) ESTABLISHING AT LEAST A PAIR OF INDEPENDENT WEBS OF GLASS FIBERS, SAID WEBS CONSISTING OF GLASS FIBERS OF SUBSTANTIALLY UNIFORM DIAMETER AND WHICH RANGE IN DIAMETER BETWEEN ABOUT 0.04 AND 1 MICRON AND VARYING NTO MORE THAN ABOUT $0.45 MICRON, SAID WEBS EACH HAVING AN EXPOSED FACE OF GLASS FIBER IN RELATIVELY LOOSE AND FLUFFY CONDITION, (B) MOVING SAID WEBS ALONG TO BRING THE CORRESPONDING EXPOSED FACES OF EACH PAIR OF WEBS TOGETHER, AND (C) APPLYING A WETTING LIQUID ONTO AT LEAST ONE OF SAID PAIR OF GLASS FIBER WEBS WHILE SAID WEBS ARE MOVING INTO COINCIDENCE TO INTERFELT SAID FIBERS AT THE SAID CONTACTING FACES AND FORM A SINGLE COMPOSITE WEB OF PAPER.
Claim 2
Independent Claim
126 words
A METHOD OF MAKING GLASS PAPER THAT INCLUDES THE STEPS OF (A) ESTABLISHING AT LEAST A PAIR OF INDEPENDENT WEBS OF GLASS FIBERS, SAID WEBS CONSISTING OF GLASS FIBERS OF SUBSTANTIALLY UNIFORM DIAMETER AND WHICH RANGE IN DIAMETER BETWEEN ABOUT 0.04 AND 1 MICRON AND VARYING NTO MORE THAN ABOUT $0.45 MICRON, SAID WEBS EACH HAVING AN EXPOSED FACE OF GLASS FIBER IN RELATIVELY LOOSE AND FLUFFY CONDITION, (B) MOVING SAID WEBS ALONG TO BRING THE CORRESPONDING EXPOSED FACES OF EACH PAIR OF WEBS TOGETHER, AND (C) APPLYING A WETTING LIQUID ONTO AT LEAST ONE OF SAID PAIR OF GLASS FIBER WEBS WHILE SAID WEBS ARE MOVING INTO COINCIDENCE TO INTERFELT SAID FIBERS AT THE SAID CONTACTING FACES AND FORM A SINGLE COMPOSITE WEB OF PAPER.
References Cited (Backward Citations)
US2188373A
Cited
US2382290A
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US2489242A
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US2491761A
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US2571334A
Cited
US2564882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |