Patent US3281894A successfully refreshed from Google Patents.
US3281894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of expanded cellular products
Assignee: GFC FOAM Corp A CORP OF DE
•
Filing: 1964-10-02
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Granted: 1966-11-01
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Expires: 1984-10-02
Abstract
No abstract record available.
Inventors
- 👤 Buff Fred
- 👤 French Marcus
- 👤 Pollock Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:25
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/322; B29C44/324
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
APPARATUS FOR THE PRODUCTION OF EXPENDED CELLULAR PRODUCTS FROM A LIQUID REACTION MIXTURE COMPRISING MEANS FOR GENERALLY UNIFORMLY DISTRIBUTING SAID LIQUID MEANS AT A DEPOSIT, STATION, AN ENDLESS TRAVELING SURFACE ONTO WHICH SAID MIXTURE IS DEPOSITED AT SAID DEPOSIT STATION FOR CONVEYING SAID LIQUID MIXTURE FROM SAID DEPOSIT STATION TO A RELEASE STATION REMOTE THEREFROM AS SAID LIQUID MIXTURE REACTS TO FORM SAID EXPANDED CELLULAR PRODUCT, A PAIR OF OPPOSED TRAVELING SUPPORT ELEMENTS BETWEEN WHICH SAID LIQUID MIXTURE OS CONTAINED DURING ITS TRAVEL FROM SAID DEPOSIT STATION TO SAID RELEASE STATION, A PLURALITY OF SUPPORT SURFACES ON EACH OF SAID OPPOSED TRAVELING SUPPORT ELEMENTS, THE OPPOSED SURFACES ON SAID SUPPORT ELEMENTS COOPERATING TO FORM A GENERALLY CONTINUOUS SHAPED BOTTOM SUPPORT FOR SAID LIQUID MIXTURE AS IT TRAVELS FROM SAID DEPOSIT STATION TO SAID RELEASE STATION DURING THE REACTON THEREOF AND THE FORMATION OF SAID CELLULAR PRODUCT WHEREBY SAID CELLULAR PRODUCT IS FORMED WITH A SHAPED BOTTOM PORTION.
Claim 2
Dependent Claim
157 words
APPARATUS FOR THE PRODUCTION OF EXPENDED CELLULAR PRODUCTS FROM A LIQUID REACTION MIXTURE COMPRISING MEANS FOR GENERALLY UNIFORMLY DISTRIBUTING SAID LIQUID MEANS AT A DEPOSIT, STATION, AN ENDLESS TRAVELING SURFACE ONTO WHICH SAID MIXTURE IS DEPOSITED AT SAID DEPOSIT STATION FOR CONVEYING SAID LIQUID MIXTURE FROM SAID DEPOSIT STATION TO A RELEASE STATION REMOTE THEREFROM AS SAID LIQUID MIXTURE REACTS TO FORM SAID EXPANDED CELLULAR PRODUCT, A PAIR OF OPPOSED TRAVELING SUPPORT ELEMENTS BETWEEN WHICH SAID LIQUID MIXTURE OS CONTAINED DURING ITS TRAVEL FROM SAID DEPOSIT STATION TO SAID RELEASE STATION, A PLURALITY OF SUPPORT SURFACES ON EACH OF SAID OPPOSED TRAVELING SUPPORT ELEMENTS, THE OPPOSED SURFACES ON SAID SUPPORT ELEMENTS COOPERATING TO FORM A GENERALLY CONTINUOUS SHAPED BOTTOM SUPPORT FOR SAID LIQUID MIXTURE AS IT TRAVELS FROM SAID DEPOSIT STATION TO SAID RELEASE STATION DURING THE REACTON THEREOF AND THE FORMATION OF SAID CELLULAR PRODUCT WHEREBY SAID CELLULAR PRODUCT IS FORMED WITH A SHAPED BOTTOM PORTION.
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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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |