US2917217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed polystyrene article
Assignee: ST Regis Paper Co
•
Filing: 1956-04-30
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Granted: 1959-12-15
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Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 James B Sisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:04
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/50; B29C44/507; B31; B31C; B31C3/00; B32; B32B; B32B27/00; B65; B65D; B65D81/00; B65D81/38; B65D81/3865; B65D81/3874; B29L; B29L2023/00; Y; Y10; Y10S; Y10S220/00; Y10S220/14; Y10S264/00; Y10S264/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A CONTAINER FORMED OF SEAMED LAMINATED SHEET MATERIAL CONSISTING OF A SHEET OF FLEXIBLE FOAMED POLYSTYRENE SECURED BY ADHESIVE TO A FLEXIBLE SHEET OF PAPER; SAID LAMINATED SHEET MATERIAL HAVING OVERLAPPING MARGINAL PORTIONS TO FORM THE SEAMS OF SUCH CONTAINER; SAID POLYSTYRENE SHEET BEING SEVERAL THOUSANDTHS OF AN INCH THICK, HAVING ON EACH OF OPPOSITE SURFACES THEREOF A SUBSTANTIALLY INTEGRAL CONTINUOUS SKIN AND CONTAINING THROUGHOUT AND BETWEEN SUCH SKIN SURFACES A MULTITUDE OF SMALL CLOSED CELLS; AN ADHESIVE LAYER BETWEEN SUCH OVERLAPPING MARGINAL PORTIONS OF SUCH LAMINATED SHEET MATERIAL, SAID FOAMED POLYSTYRENE HAVING BEEN REMOVED FROM THOSE OF SUCH MARGINAL PORTIONS WHICH ARE IN ENGAGEMENT WITH THE PAPER SIDE OF OTHER MARGINAL PORTIONS OF SAID SHEET MATERIAL.
Claim 2
Dependent Claim
117 words
A CONTAINER FORMED OF SEAMED LAMINATED SHEET MATERIAL CONSISTING OF A SHEET OF FLEXIBLE FOAMED POLYSTYRENE SECURED BY ADHESIVE TO A FLEXIBLE SHEET OF PAPER; SAID LAMINATED SHEET MATERIAL HAVING OVERLAPPING MARGINAL PORTIONS TO FORM THE SEAMS OF SUCH CONTAINER; SAID POLYSTYRENE SHEET BEING SEVERAL THOUSANDTHS OF AN INCH THICK, HAVING ON EACH OF OPPOSITE SURFACES THEREOF A SUBSTANTIALLY INTEGRAL CONTINUOUS SKIN AND CONTAINING THROUGHOUT AND BETWEEN SUCH SKIN SURFACES A MULTITUDE OF SMALL CLOSED CELLS; AN ADHESIVE LAYER BETWEEN SUCH OVERLAPPING MARGINAL PORTIONS OF SUCH LAMINATED SHEET MATERIAL, SAID FOAMED POLYSTYRENE HAVING BEEN REMOVED FROM THOSE OF SUCH MARGINAL PORTIONS WHICH ARE IN ENGAGEMENT WITH THE PAPER SIDE OF OTHER MARGINAL PORTIONS OF SAID SHEET MATERIAL.
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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) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |