US3012284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing cored cellular articles
Assignee: EIDP Inc
•
Filing: 1957-11-01
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Granted: 1961-12-12
•
Expires: 1977-11-01
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Touhey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:42
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/58; B29C44/583; B29C33/00; B29C33/0033; B29C33/10; B29K; B29K2075/00; Y; Y10; Y10S; Y10S264/00; Y10S264/11; Y10S264/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE PROCESS OF PREPARING A CORED CELLULAR POLYURETHANE ARTICLE IN A MOLD HANGING AN OPEN CAVITY AND A MULTI-SECTIONAL COVER PLATE, WHICH PROCESS COMPRISES CONTINUOUSLY AND PROGRESSIVELY INTRODUCING A FOAMABLE POLYURETHANE COMPOSITION ALONG SAID OPEN CAVITY, SUCCESSIVELY AND PROGRESSIVELY POSITIONING SAID COVER PLATE SECTIONS ABOVE SAID FOAMABLE POLYURETHANE COMPOSITION SO THAT THE CORING ELEMENTS, WHICH ARE DEPENDENTLY ATTACHED TO SAID COVER PLATE SECTIONS ARE IN PLACE EXTENDING PERPEN-
Claim 2
Dependent Claim
68 words
THE PROCESS OF PREPARING A CORED CELLULAR POLYURETHANE ARTICLE IN A MOLD HANGING AN OPEN CAVITY AND A MULTI-SECTIONAL COVER PLATE, WHICH PROCESS COMPRISES CONTINUOUSLY AND PROGRESSIVELY INTRODUCING A FOAMABLE POLYURETHANE COMPOSITION ALONG SAID OPEN CAVITY, SUCCESSIVELY AND PROGRESSIVELY POSITIONING SAID COVER PLATE SECTIONS ABOVE SAID FOAMABLE POLYURETHANE COMPOSITION SO THAT THE CORING ELEMENTS, WHICH ARE DEPENDENTLY ATTACHED TO SAID COVER PLATE SECTIONS ARE IN PLACE EXTENDING PERPEN-
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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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |