US3189242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated expanded resin container
Assignee: Sheffield Plastics Inc
•
Filing: 1961-05-23
•
Granted: 1965-06-15
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Expires: 1981-05-23
Abstract
No abstract record available.
Inventors
- 👤 John B Orr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 22:48
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/14; Y; Y10; Y10S; Y10S264/00; Y10S264/14; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1376
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A LIGHTWEIGHT CONTAINER OF EXPANDED POLYSTYRENE BEAD CONSTRUCTION OF A DENSITY WITHIN ABOUT 1/2 TO 20 POUNDS PER CUBIC FOOT HAVING A PAPRAFFIN WAX COATING OF A THICKNESS OF ABOUT .002 TO LESS THAN ABOUT .006 OF AN INCH IN AN ADHERING AND RELATIVELY UNIFORM RELATION ON A SURFACE OF ITS WALL, SAID COATING HAVING A MELTING POINT
Claim 2
Dependent Claim
58 words
A LIGHTWEIGHT CONTAINER OF EXPANDED POLYSTYRENE BEAD CONSTRUCTION OF A DENSITY WITHIN ABOUT 1/2 TO 20 POUNDS PER CUBIC FOOT HAVING A PAPRAFFIN WAX COATING OF A THICKNESS OF ABOUT .002 TO LESS THAN ABOUT .006 OF AN INCH IN AN ADHERING AND RELATIVELY UNIFORM RELATION ON A SURFACE OF ITS WALL, SAID COATING HAVING A MELTING POINT
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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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |