Patent US3567536A successfully refreshed from Google Patents.
US3567536A
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US
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Container and method of preparation
Assignee: Lockheed Martin Tactical Systems Inc
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Filing: 1968-02-07
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Granted: 1971-03-02
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Expires: 1988-02-07
Abstract
Abstract THIS INVENTION RELATES TO A CONTAINER AND THE METHOD OF MAKING SAID CONTAINER COMPRISING FORMING A FORAMINOUS MASS OR A RETICULATED FOAM HAVING THE SHAPE OF THE DESIRED CONTAINER, SEALING THE SURFACE OPENING OF THE FORAMINOUS MASS AND APPLYING A COATING OF THE CONTAINER MATERIAL OVER THE SEALED LAYER ON THE FORAMINOUS MASS TO FORM THE SIDES OF THE CONTAINER. PREFERABLY, THE FORAMINOUS MASS IS A RETICULATED POLYURETHANE FOAM AND THE SEALING MATERIAL IS A POLYURETHANE REACTION MIXTURE WHICH WHEN SPRAYED FORMS A COBWEBBING AND THE COATING MATERIAL IS AN ELASTOMERIC MATERIAL.
Inventors
- 👤 William S Wickersham Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:20
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0442; F41H5/0457; B; B32; B32B; B32B27/00; B60; B60K; B60K15/00; B60K15/03; B60K15/03177; B64; B64D; B64D37/00; B64D37/02; B65; B65D; B65D90/00; B65D90/02; B65D90/022; B29; B29K; B29K2021/00; B29K2105/00; B29K2105/04; B60K2015/03328; B60K2015/03407; Y; Y10; Y10S; Y10S220/00; Y10S220/905; Y10S428/00; Y10S428/911; Y10S428/912; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1376; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |