US2567558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asbestos sheet material and method of manufacture
Assignee: Philip Carey Manufacturing Co
•
Filing: 1944-12-29
•
Granted: 1951-09-11
•
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
2026-10-31 21:07
CPC Classifications
C; C04; C04B; C04B28/00; D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/587; D04H1/64; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/699
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN THE MANUFACTURE OF A FLEXIBLE BIBULOUS COHERENT SHEET-LIKE BODY OF FELTED FIBERS CONSISTING IN MAJOR PROPORTION BY WEIGHT 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 COMPOUND CONTAINING A SULPHATE ANION, SAID ASBESTOS FIBERS BEING INITIALLY CONTACTED WITH SAID AQUEOUS SOLUTION OF A WATER-SOLUBLE INORGANIC COMPOUND CONTAINING A SULPHATE ANION 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 SHEET-LIKE BODY OF FELTED FIBERS, THEREBY BONDING TOGETHER THE CONTACTING ASBESTOS FIBERS IN SAID SHEET-LIKE BODY BY THE INTERACTION IN SITU BETWEEN SAID ASBESTOS FIBERS AS DISPOSED IN FELTED REALTION IN SAID SHEET-LIKE BODY AND SAID COMPOUND, SAID SOLUTION OF SAID WATER-SOLUBEL INORGANIC COMPOUND CONTAINING A SULPHATE ANION BEING APPLIED AT SUCH CONCENTRATION THAT SAID SHEET-LIKE BODY AFTER DRYING IS FLEXIBLE AND BIBULOUS.
Claim 2
Dependent Claim
155 words
IN THE MANUFACTURE OF A FLEXIBLE BIBULOUS COHERENT SHEET-LIKE BODY OF FELTED FIBERS CONSISTING IN MAJOR PROPORTION BY WEIGHT 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 COMPOUND CONTAINING A SULPHATE ANION, SAID ASBESTOS FIBERS BEING INITIALLY CONTACTED WITH SAID AQUEOUS SOLUTION OF A WATER-SOLUBLE INORGANIC COMPOUND CONTAINING A SULPHATE ANION 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 SHEET-LIKE BODY OF FELTED FIBERS, THEREBY BONDING TOGETHER THE CONTACTING ASBESTOS FIBERS IN SAID SHEET-LIKE BODY BY THE INTERACTION IN SITU BETWEEN SAID ASBESTOS FIBERS AS DISPOSED IN FELTED REALTION IN SAID SHEET-LIKE BODY AND SAID COMPOUND, SAID SOLUTION OF SAID WATER-SOLUBEL INORGANIC COMPOUND CONTAINING A SULPHATE ANION 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 |