Patent US2500092A successfully refreshed from Google Patents.
US2500092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leaching of batted resin bonded glass fibers
Assignee: H I THOMPSON Co
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Filing: 1948-06-21
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Granted: 1950-03-07
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Expires: 1968-06-21
Abstract
No abstract record available.
Inventors
- 👤 Parker Leon
- 👤 Zack Bonnie Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:07
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/66; C03C25/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PROCESS OF FORMING BATTS OF SILICA FIBRES, WHICH COMPRISES, FORMING A ROLL OF RESIN BONDED GLASS FIBRE BATT, WRAPPING SAID ROLL IN AN ENVELOPE OF AN ACID RESISTANT AND ACID PERMEABLE SHEATH, IMMERSING SAID WRAPPED ROLL IN A SOLUTION OF AN ACID FOR A TIME SUFFICIENT TO EXTRACT THE GLASS FORMING OXIDES, OTHER THAN SILICA, OF SAID ROLL, REMOVING SAID ROLL FROM SAID ENVELOPE, AND HEATING SAID EXTRACTED FIBRES TO AN ELEVATED TEMPERATURE SUFFICIENT TO DEHYDRATE SAID BATT AND REMOVE SAID RESIN.
Claim 2
Dependent Claim
83 words
A PROCESS OF FORMING BATTS OF SILICA FIBRES, WHICH COMPRISES, FORMING A ROLL OF RESIN BONDED GLASS FIBRE BATT, WRAPPING SAID ROLL IN AN ENVELOPE OF AN ACID RESISTANT AND ACID PERMEABLE SHEATH, IMMERSING SAID WRAPPED ROLL IN A SOLUTION OF AN ACID FOR A TIME SUFFICIENT TO EXTRACT THE GLASS FORMING OXIDES, OTHER THAN SILICA, OF SAID ROLL, REMOVING SAID ROLL FROM SAID ENVELOPE, AND HEATING SAID EXTRACTED FIBRES TO AN ELEVATED TEMPERATURE SUFFICIENT TO DEHYDRATE SAID BATT AND REMOVE SAID RESIN.
References Cited (Backward Citations)
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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) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |