US3173975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding a foamed article having metal particles uniformly distributed therein
Assignee: Dow Chemical Co
•
Filing: 1961-06-16
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Granted: 1965-03-16
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Expires: 1981-06-16
Abstract
No abstract record available.
Inventors
- 👤 Charles R Wiles
- 👤 Earl E Guilford
- 👤 Lawrence R Stanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:31
CPC Classifications
C; C08; C08J; C08J9/00; B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/44; B29C44/445; B29C44/3415; B29C44/3426; B29K; B29K2105/00; B29K2105/06; B29K2105/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
THE METHOD OF FABRICATING AN EXPANDED THERMOPLASTIC FINAL UNITARY BODY OF A DESIRED DENSITY HAVING UNIFORMLY DISPERSED THERETHROUGH A PARTICULATE METAL ADDITVE MATERIAL COMPRISING: PROVIDING A PARTICULATE MASS OF PARTLY EXPANDED THERMOPLASTIC RESINOUS MATERIAL HAVING A DENSITY GREATER THAN SAID DESIRED DENSITY, BLENDING SAID MASS WITH SAID PARTICULATE ADDITIVE MATERIAL, CONFINING SAID MASS WITHIN A CONFIGURATION AND HEATING THE RESULTANT LBENDED MASS TO FORM A UNITARY MASS, DIVIDING SAID UNITARY MASS INTO A PLURALITY OF SMALL BODIES, EACH HAVING A VOLUME NOT MORE THAN ABOUT ONE HUNDREDTH THAT OF SAID FINAL BODY, INTERMIXING SAID SMALL BODIES TOGETHER TO PROVIDE A RANDOM DISTRIBUTION AND CONFINING THE SMALL BODIES WITHIN A CONFIGURATION AND HEATING SAID RANDOMLY DISTRIBUTED SMALL
Claim 2
Independent Claim
116 words
THE METHOD OF FABRICATING AN EXPANDED THERMOPLASTIC FINAL UNITARY BODY OF A DESIRED DENSITY HAVING UNIFORMLY DISPERSED THERETHROUGH A PARTICULATE METAL ADDITVE MATERIAL COMPRISING: PROVIDING A PARTICULATE MASS OF PARTLY EXPANDED THERMOPLASTIC RESINOUS MATERIAL HAVING A DENSITY GREATER THAN SAID DESIRED DENSITY, BLENDING SAID MASS WITH SAID PARTICULATE ADDITIVE MATERIAL, CONFINING SAID MASS WITHIN A CONFIGURATION AND HEATING THE RESULTANT LBENDED MASS TO FORM A UNITARY MASS, DIVIDING SAID UNITARY MASS INTO A PLURALITY OF SMALL BODIES, EACH HAVING A VOLUME NOT MORE THAN ABOUT ONE HUNDREDTH THAT OF SAID FINAL BODY, INTERMIXING SAID SMALL BODIES TOGETHER TO PROVIDE A RANDOM DISTRIBUTION AND CONFINING THE SMALL BODIES WITHIN A CONFIGURATION AND HEATING SAID RANDOMLY DISTRIBUTED SMALL
References Cited (Backward Citations)
US2419035A
Cited
US2996709A
Cited
US2531739A
Cited
US2716190A
Cited
US2787809A
Cited
US3041303A
Cited
US2806509A
Cited
US3089857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |