US3354031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement-asbestos products and improvement in the manufacture thereof
Assignee: Philip Carey Manufacturing Co
•
Filing: 1964-07-16
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Granted: 1967-11-21
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Expires: 1984-07-16
Abstract
No abstract record available.
Inventors
- 👤 John J Kozacik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:22
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AS A FIBROUS MINERAL REINFORCEMENT FOR A CEMENTASBESTOS SHEET PRODUCT WATERLAID FROM A SLURRY OF PORTLAND CEMENT AND ASBESTOS FIBERS, A MINERAL FIBER MIXTURE CONSISTING OF A MAJOR PROPORTION OF ASBESTOS FIBERS, OF WHICH A SUBSTANTIAL PROPORTION IS OF SOFT CHRYSOTILE ASBESTOS FIBERS, AND A MINOR PROPORTION OF HARSH MINERAL GLASS FIBERS, SAID MINERAL GLASS FIBERS BEING IN THE RANGE OF ABOUT 5 MICRONS TO ABOUT 25 MICRONS IN DIAMETER, SAID MINERAL GLASS FIBERS CONSTITUTING FROM ABOUT 2% TO ABOUT 25% BY WEIGHT OF SAID MINERAL FIBER MIXTURE.
Claim 2
Dependent Claim
88 words
AS A FIBROUS MINERAL REINFORCEMENT FOR A CEMENTASBESTOS SHEET PRODUCT WATERLAID FROM A SLURRY OF PORTLAND CEMENT AND ASBESTOS FIBERS, A MINERAL FIBER MIXTURE CONSISTING OF A MAJOR PROPORTION OF ASBESTOS FIBERS, OF WHICH A SUBSTANTIAL PROPORTION IS OF SOFT CHRYSOTILE ASBESTOS FIBERS, AND A MINOR PROPORTION OF HARSH MINERAL GLASS FIBERS, SAID MINERAL GLASS FIBERS BEING IN THE RANGE OF ABOUT 5 MICRONS TO ABOUT 25 MICRONS IN DIAMETER, SAID MINERAL GLASS FIBERS CONSTITUTING FROM ABOUT 2% TO ABOUT 25% BY WEIGHT OF SAID MINERAL FIBER MIXTURE.
References Cited (Backward Citations)
GB509035A
Cited
US3014835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |