US3702593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of surface from boron carbide composite armor
Assignee: Saint Gobain Abrasives Inc
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Filing: 1968-10-21
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Granted: 1972-11-14
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Expires: 1988-10-21
Abstract
Abstract The protective capability of composite armor panels is increased by removing material from the outermost layer or layers of the ceramic face plate thereof, of a thickness of from about 0.003 to about 0.050 inch, and then adhering said plate to a backing element.
Inventors
- 👤 Richard A Fine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:56
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0414; F41H5/0428; F41H5/0435; C; C04; C04B; C04B35/00; C04B35/515; C04B35/56; C04B35/563; C23; C23C; C23C24/00; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
67 words
Composite armor panel comprising a ceramic face plate in the form of a hot pressed monolithic shape consisting essentially of polycrystalline boron carbide and a backing element adhered thereto, both surfaces of said face plate having been modified to improve the ballistic properties of said panel by removing material from the outer surface layer, said material ranging from about 0.003 inch to about 0.050 inch in thickness.
References Cited (Backward Citations)
US2697054A
Cited
US3573150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |