US2991209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent bullet resisting structure
Assignee: Safetee Glass Co
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Filing: 1956-12-31
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Granted: 1961-07-04
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur G Worrall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:36
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10761; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10293; B32B2333/00; B32B2333/04; B32B2333/12; F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0407; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24752; Y10T428/24942; Y10T428/2495; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31855; Y10T428/31909
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A BULLET RESISTING LAMINATED STRUCTURE COMPRISING A THICK CORE OF METHYL METHACRYLATE RESIN HAVING ON EACH SIDE THEREOF A SURFACE LAYER OF GLASS BONDED THERETO BY A POLYVINYL BUTYRAL ADHESIVE CONTAINING OVER 37 PARTS OF PLASTICIZER IN 100 PARTS OF RESIN BY WEIGHT, AND THE THICKNESS OF SAID CORE BEING GREATER THAN THE COMBINED THICKNESS OF THE LAYERS OF GLASS AND THE LAYERS OF POLYVINYL BUTYRAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |