Patent US4094508A successfully refreshed from Google Patents.
Patent US3556918A successfully refreshed from Google Patents.
US3556918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite reinforced plastic foam sheet
Assignee: Individual
•
Filing: 1968-12-03
•
Granted: 1971-01-19
•
Expires: 1988-12-03
Abstract
Abstract A COMPOSITE, SHEET-LIKE ARTICLE OF MANUFACTURE IS PROVIDED COMPRISING A BASE SHEET MADE OF FLEXIBLE, CELLULAR PLASTIC MATERIAL AND A PLURALITY OF REINFORCING ELEMENTS SECURED TO ONE OR BOTH MAJOR SURFACES OF THE SHEET OR EXTENDING THROUGH THE SHEET. WHERE THE COMPOSITE SHEET IS TO BE UTILIZED AS A CLEANING AND SCOURING DEVICE, THE PARALLELLY EXTENDING REINFORCING ELEMENTS ARE SURFACE SECURED AND SERVE TO SCOUR GREASE WHILE THE SPONGE-LIKEBASE ELEMENT SERVES TO RETAIN AND DISPENSE A CLEANING LIQUID SUCH AS WATER. THE COMPOSITE SHEET MAY BE FORMED BY WELDING STRIPLIKE OR FILAMENTAL ELEMENTS TO THE SURFACES OF THE SHEET OR BY CO-EXTRUDING SAID ELEMENTS WITH THE BASE MATERIAL.
Inventors
- 👤 Jerome H Lemelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:05
CPC Classifications
A; A47; A47L; A47L17/00; A47L17/04; A47L17/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T428/24132; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24521; Y10T428/24537; Y10T428/24777; Y10T428/24802; Y10T428/24826; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |