US3196197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for shipping rigid polyurethane foam
Assignee: Individual
•
Filing: 1962-11-01
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Granted: 1965-07-20
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Expires: 1982-11-01
Abstract
No abstract record available.
Inventors
- 👤 Goldfein Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:20
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J9/42; C08J2205/00; C08J2205/10; C08J2375/00; C08J2375/04; C08J2425/00; C08J2427/00; C08J2429/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A METHOD FOR COMPRESSING AND RE-EXPANDING RIGID POLYURETHANE FOAM COMPRISING THE STEPS OF: (A) COMPRESSING THE RIGID POLYURETHANE FOAM TO A FRACTION OF ITS ORIGINAL VOLUME WITH COMPRESSING MEANS; (B) REMOVING SAID COMPRESSED FOAM FROM SAID COMPRESSING MEANS; (C) RE-EXPANDING BY IMMERSING SAID COMPRESSED FOAM IN A KETONE; (D) IMMERSING SAID RE-EXPANDED FOAM IN A PLASTIC SOLUBLE IN SAID KETONE; AND (E) EVAPORATING SAID KETONE TO PRODUCE A RIGID REEXPENDED POLYURETHANE FOAM.
Claim 2
Independent Claim
72 words
A METHOD FOR COMPRESSING AND RE-EXPANDING RIGID POLYURETHANE FOAM COMPRISING THE STEPS OF: (A) COMPRESSING THE RIGID POLYURETHANE FOAM TO A FRACTION OF ITS ORIGINAL VOLUME WITH COMPRESSING MEANS; (B) REMOVING SAID COMPRESSED FOAM FROM SAID COMPRESSING MEANS; (C) RE-EXPANDING BY IMMERSING SAID COMPRESSED FOAM IN A KETONE; (D) IMMERSING SAID RE-EXPANDED FOAM IN A PLASTIC SOLUBLE IN SAID KETONE; AND (E) EVAPORATING SAID KETONE TO PRODUCE A RIGID REEXPENDED POLYURETHANE FOAM.
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |