US3224983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of foaming a carbonate containing polymer containing an initiator
Assignee: Kimberly Clark Tissue Co
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Filing: 1962-05-21
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Granted: 1965-12-21
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Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:38
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/08; C07; C07D; C07D317/00; C07D317/08; C07D317/10; C07D317/32; C07D317/34; C07D317/36; C08J9/02; Y; Y10; Y10S; Y10S521/00; Y10S521/908
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
THE PROCESS OF FOAMING SYNTHETIC THERMOPLASTIC POLYMERS WHICH COMPRISES HEATING TO RELEASE A FOAMING GAS, AT A TEMPERATURE OF AT LEAST 100*C., A POLYMER WHICH IS SOFTENED AT SUCH TEMPERATURE, SAID POLYMER CONTAINING AS A CHEMICALLY COMBINED DERIVATIVE, AT LEASSST ONE MEMBER OF THE CLASS CONSISTING OF AN ORGANIC CARBONATE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
54 words
THE PROCESS OF FOAMING SYNTHETIC THERMOPLASTIC POLYMERS WHICH COMPRISES HEATING TO RELEASE A FOAMING GAS, AT A TEMPERATURE OF AT LEAST 100*C., A POLYMER WHICH IS SOFTENED AT SUCH TEMPERATURE, SAID POLYMER CONTAINING AS A CHEMICALLY COMBINED DERIVATIVE, AT LEASSST ONE MEMBER OF THE CLASS CONSISTING OF AN ORGANIC CARBONATE OF THE GENERAL FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |