US3123577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of liquefying cellular
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:08
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/10; C08J2375/00; C08J2375/04; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
THE MEHTOD OF MECHANICALLY REDUCING A FLEXIBLE CELLULAR POLYETHER POLYURETHANE PLASTIC WHICH COMPRISES PASSING SAID CELLULAR POLYETHER POLYURETHANE THROUGH A ROLLER MILL HAVING ONLY TWO ROLLS ROTATING TOGETHER AT DIFFERENT SPEEDS, THE SPACE BETWEEN THE ROLLERS BEING BETWEEN ABOUT 0.005 AND ABOUT 0.025 INCH.
Claim 2
Dependent Claim
44 words
THE MEHTOD OF MECHANICALLY REDUCING A FLEXIBLE CELLULAR POLYETHER POLYURETHANE PLASTIC WHICH COMPRISES PASSING SAID CELLULAR POLYETHER POLYURETHANE THROUGH A ROLLER MILL HAVING ONLY TWO ROLLS ROTATING TOGETHER AT DIFFERENT SPEEDS, THE SPACE BETWEEN THE ROLLERS BEING BETWEEN ABOUT 0.005 AND ABOUT 0.025 INCH.
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |