US3154606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding cellular polyurethane plastics
Assignee: Bayer Corp
•
Filing: 1959-12-15
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Granted: 1964-10-27
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Expires: 1979-12-15
Abstract
No abstract record available.
Inventors
- 👤 Andrew S Morecroft
- 👤 John F Szabat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:55
CPC Classifications
C; C08; C08J; C08J9/00; B; B29; B29C; B29C33/00; B29C33/02; B29C35/00; B29C35/02; B29K; B29K2075/00; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE METHOD OF PRODUCING A CELLULAR POLYURETHANE WITH IMPROVED PHYSICAL CHARACTERISTICS WHICH COMPRISES HEATING A CLOSED MOLD CONTAINING LIQUID COMPONENTS WHICH ARE REACTING TO FORM A CELLULAR POLYURETHANE AT A RATE WHEREBY THE TEMPERATURE OF THE MOLD-CELLULAR POLYURETHANE INTERFACE PROXIMATES THE TEMPERATURE OF THE REACTING COMPONENTS.
Claim 2
Independent Claim
46 words
THE METHOD OF PRODUCING A CELLULAR POLYURETHANE WITH IMPROVED PHYSICAL CHARACTERISTICS WHICH COMPRISES HEATING A CLOSED MOLD CONTAINING LIQUID COMPONENTS WHICH ARE REACTING TO FORM A CELLULAR POLYURETHANE AT A RATE WHEREBY THE TEMPERATURE OF THE MOLD-CELLULAR POLYURETHANE INTERFACE PROXIMATES THE TEMPERATURE OF THE REACTING COMPONENTS.
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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |