US3246059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of form pressed parts of light specific gravity from foamed synthetic plastics
Assignee: Collo Rheincollodium Koeln GmbH
•
Filing: 1962-10-08
•
Granted: 1966-04-12
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Expires: 1982-10-08
Abstract
No abstract record available.
Inventors
- 👤 Moroni Rolf
- 👤 Kisteneich Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:59
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/44; B29C44/00; B29C44/02; B29C44/04; B29C44/0415; B29C70/46; B29C70/467; B29C37/00; B29C37/005; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B29K; B29K2105/00; B29K2105/25; B29K2105/253; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249961
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS FOR THE PREPARATION OF LIGHT FORM PRESSED ELEMENTS, HAVING A NON-POROUS DENSE SURFACE AND HAVING A SPECIFIC GRAVITY IN THE RANGE OF ABOUT 0.3 TO 0.9 AND CONTINUALLY DECREASING INWARDLY IN DENSITY, FROM A SELF-FOAMING SYNTHETIC PLASTIC MIXTURE, COMPRISING THE STEPS OF: MEASURING INTO A CONFINING MOLD AS A PRELIMINARY MOLD DEVICE THE FOAMABLE REACTIVE MIXTURE IN AN AMOUNT WHICH WOULD FREELY SELF-FOAM TO A VOLUME SUBSTANTIALLY GREATER THAN THE MOLD FORM VOLUME; PERMITTING THE MIXTURE TO PRE-FOAM AND THEREBY FILL THE ENTIRE VOLUME OF THE MOLD DEVICE UNDER A SLIGHTLY
Claim 2
Dependent Claim
93 words
A PROCESS FOR THE PREPARATION OF LIGHT FORM PRESSED ELEMENTS, HAVING A NON-POROUS DENSE SURFACE AND HAVING A SPECIFIC GRAVITY IN THE RANGE OF ABOUT 0.3 TO 0.9 AND CONTINUALLY DECREASING INWARDLY IN DENSITY, FROM A SELF-FOAMING SYNTHETIC PLASTIC MIXTURE, COMPRISING THE STEPS OF: MEASURING INTO A CONFINING MOLD AS A PRELIMINARY MOLD DEVICE THE FOAMABLE REACTIVE MIXTURE IN AN AMOUNT WHICH WOULD FREELY SELF-FOAM TO A VOLUME SUBSTANTIALLY GREATER THAN THE MOLD FORM VOLUME; PERMITTING THE MIXTURE TO PRE-FOAM AND THEREBY FILL THE ENTIRE VOLUME OF THE MOLD DEVICE UNDER A SLIGHTLY
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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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |