US3684633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated thermoplastic foam-film dish
Assignee: Mobil Oil AS
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Filing: 1971-01-05
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Granted: 1972-08-15
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Expires: 1991-01-05
Abstract
Abstract A DISPOSABLE PLASTIC DISH COMPRISED OF A THIN LAMINA OF ORIENTED THERMOPLASTIC FILM SUPERIMPOSED UPON A POLYSTYRENE FOAM LAMINA, THE DISH HAVING AN OUTWARDLY EXTENDING RIM AT ITS UPPER PERIPHERY, THE FOAM OF THE RIM BEING COMPRESSED TO STRENGTHEN THE EDGE OF THE DISH AND TO RESULT IN THE RIM TAPERING TO A THIN EDGE AT THE PERIPHERY OF THE DISH. THE THIN EDGE OF THE RIM IS SUBSTANTIALLY SHIELDED FROM VIEW FROM ABOVE BY THE SUPERIMPOSED THERMOPLASTIC FILM AND THE CONFIGURATION OF THE RIM.
Inventors
- 👤 Donald A Haase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:47
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/065; A; A47; A47G; A47G19/00; A47G19/02; A47G19/03; B29; B29C; B29C44/00; B29C44/02; B29C44/10; B29C51/00; B29C51/14; B32B1/00; B32B27/30; B32B27/302; B32B5/00; B32B5/18; B29C51/08; B29K; B29K2025/00; B29K2105/00; B29K2105/04; B29K2105/25; B29K2105/253; B29K2105/256; B29L; B29L2009/00; B29L2031/00; B29L2031/712; B29L2031/7132; B29L2031/74; B29L2031/7404; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0221; B32B2266/0228; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/518; B32B2325/00; B32B2439/00; B32B2439/02; Y; Y10; Y10S; Y10S220/00; Y10S220/902; Y10T; Y10T428/00; Y10T428/21; Y10T428/219; Y10T428/24; Y10T428/24628; Y10T428/24777; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; 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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |