US3700534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard faced plastic armorplate
Assignee: Lockheed Martin Tactical Systems Inc
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Filing: 1970-05-01
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Granted: 1972-10-24
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Expires: 1990-05-01
Abstract
Abstract ARMORPLATE COMPRISING A RELATIVELY THICK BASE OF TRANSPARENT STRETCHED METHACRYLATE AND A RELATIVELY THICK FACING LAYER OF TRANSPARENT WINDOW GLASS IS SECURED TO THE BASE BY A RELATIVELY THIN LAYER OF METHYL METHACRYLATE CEMENT.
Inventors
- 👤 Richard L Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:32
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0414; F41H5/0428; B; B29; B29C; B29C70/00; B29C70/003; B29K; B29K2309/00; B29K2309/08; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/16; Y10T428/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |