US2567559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asbestos sheet material and method of manufacture
Assignee: Philip Carey Manufacturing Co
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Filing: 1944-12-29
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Granted: 1951-09-11
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Expires: 1964-12-29
Abstract
No abstract record available.
Inventors
- 👤 Harold W Greider
- 👤 Marion F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:19
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/34; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN THE MANUFACTURE OF A FLEXIBLE, BIBULOUS COHERENT SHEET-LIKE BODY OF FELTED FIBERS CONSISTING IN MAJOR PROPORTION BY WEIGTH OF ASBESTOS FIBERS, THE STEPS COMPRISING CONTACTING THE ASBESTOS FIBERS WHILE DISPOSED IN SAID SHEET-LIKE BODY OF FELTED FIBERS WITH AN AQUEOUS SOLUTION OF A WATER-SOLUBLE INORGANIC PHOSPHATE, SAID ASBESTOS FIBERS BEING INTIALLY CONTACTED WITH SAID AQUEOUS SOLUTION OF A WATER-SOLUBLE INORGANIC PHOSPHATE AFTER THE FIBERS IN SAID FELTED-FIBER SHEET-LIKE BODY HAVE BEEN DISPOSED IN FELTED RELATION IN SAID SHEET-LIKE BODY, AND THEREAFTER DRYING THE SHEETLIKE BODY OF FELTED FIBERS, THEREBY BONDING TOGETHER THE CONTACTING ASBESTOS FIBERS IN SAID SHEET-LIKE BODY BY INTERACTION IN SITU BETWEEN SAID ASBESTOS FIBERS AS DISPOSED IN FLETED RELATIONN IN SAID SHEET-LIKE BODY AND SAID WATER-SOLUBLE INORGANIC PHOSPHATE, SAID SOLUTION OF SAID WATERSOLUBLE INORGANIC PHOSPHATE BEING APPLIED AT SUCH CONCENTRATION THAT SAID SHEET-LIKE BODY AFTER DRYING IS FLEXIBLE AND BIBULOUS.
Claim 2
Dependent Claim
144 words
IN THE MANUFACTURE OF A FLEXIBLE, BIBULOUS COHERENT SHEET-LIKE BODY OF FELTED FIBERS CONSISTING IN MAJOR PROPORTION BY WEIGTH OF ASBESTOS FIBERS, THE STEPS COMPRISING CONTACTING THE ASBESTOS FIBERS WHILE DISPOSED IN SAID SHEET-LIKE BODY OF FELTED FIBERS WITH AN AQUEOUS SOLUTION OF A WATER-SOLUBLE INORGANIC PHOSPHATE, SAID ASBESTOS FIBERS BEING INTIALLY CONTACTED WITH SAID AQUEOUS SOLUTION OF A WATER-SOLUBLE INORGANIC PHOSPHATE AFTER THE FIBERS IN SAID FELTED-FIBER SHEET-LIKE BODY HAVE BEEN DISPOSED IN FELTED RELATION IN SAID SHEET-LIKE BODY, AND THEREAFTER DRYING THE SHEETLIKE BODY OF FELTED FIBERS, THEREBY BONDING TOGETHER THE CONTACTING ASBESTOS FIBERS IN SAID SHEET-LIKE BODY BY INTERACTION IN SITU BETWEEN SAID ASBESTOS FIBERS AS DISPOSED IN FLETED RELATIONN IN SAID SHEET-LIKE BODY AND SAID WATER-SOLUBLE INORGANIC PHOSPHATE, SAID SOLUTION OF SAID WATERSOLUBLE INORGANIC PHOSPHATE BEING APPLIED AT SUCH CONCENTRATION THAT SAID SHEET-LIKE BODY AFTER DRYING IS FLEXIBLE AND BIBULOUS.
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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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |