US2844554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions containing diisocynatelinked polyurethane elastomer and beeswax
Assignee: Goodrich Corp
•
Filing: 1955-01-03
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Granted: 1958-07-22
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Expires: 1975-01-03
Abstract
No abstract record available.
Inventors
- 👤 Robinson F Nichols
- 👤 Leonard C Kreider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:20
CPC Classifications
C; C08; C08L; C08L75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A COMPOSITION OF MATTER COMPRISING A DIISOCYANATELINKED CONDENSATION POLYURETHANE ELASTOMER OBTAINED BY REACTION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYESTERAMIDES AND POLYALKYLENE ETHER GLYCOLS WITH AN ORGANIC DIISOCYANATE HAVING ISOCYANATE GROUPS AS THE SOLE REACTIVE GROUPS,AND A SMALL AMOUNT OF BEESWAX TO IMPROVE THE PROCESSING CHARACTERISTICS OF SAID ELASTOMER.
Claim 2
Dependent Claim
53 words
A COMPOSITION OF MATTER COMPRISING A DIISOCYANATELINKED CONDENSATION POLYURETHANE ELASTOMER OBTAINED BY REACTION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYESTERAMIDES AND POLYALKYLENE ETHER GLYCOLS WITH AN ORGANIC DIISOCYANATE HAVING ISOCYANATE GROUPS AS THE SOLE REACTIVE GROUPS,AND A SMALL AMOUNT OF BEESWAX TO IMPROVE THE PROCESSING CHARACTERISTICS OF SAID ELASTOMER.
References Cited (Backward Citations)
US2760953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |