Patent US3049515A successfully refreshed from Google Patents.
US3049515A
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Hydroxy-terminated polyether-based urethane compositions
Assignee: Wyandotte Chemicals Corp
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Filing: 1959-03-26
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Granted: 1962-08-14
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Expires: 1979-03-26
Abstract
No abstract record available.
Inventors
- 👤 Adolfas Damusis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:19
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/02; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/48; C08G18/4829; C08G18/50; C08G18/5021; C08G18/70; C08G18/72; C08G18/74; C08G18/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A HYDROXY-TERMINATED URETHANE COMPOSITION PREPARED BY MIXING AND REACTING TOGETHER ABOUT ONE MOLAR PROPORTION OF ARYLENE DIISOCYANTE (A) SELECTED FROM THE GROUP CONSISTING OF PHENYLENE DIISOCYANTE, TOLYLENE DIISOCYANTE, AND DIPHENYLMETHANE-4,4''-DIISOCYANATE, WITH ABOUT TWO MOLAR PROPORTIONS OF POLYETHER POLYOL (B), SAID POLYETHER POLYOL (B) BEING OF THE FORMULA:
Claim 2
Dependent Claim
47 words
A HYDROXY-TERMINATED URETHANE COMPOSITION PREPARED BY MIXING AND REACTING TOGETHER ABOUT ONE MOLAR PROPORTION OF ARYLENE DIISOCYANTE (A) SELECTED FROM THE GROUP CONSISTING OF PHENYLENE DIISOCYANTE, TOLYLENE DIISOCYANTE, AND DIPHENYLMETHANE-4,4''-DIISOCYANATE, WITH ABOUT TWO MOLAR PROPORTIONS OF POLYETHER POLYOL (B), SAID POLYETHER POLYOL (B) BEING OF THE FORMULA:
References Cited (Backward Citations)
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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) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |