US2683728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoadducts of polyisocyanates and tertiary alcohols
Assignee: Goodyear Tire and Rubber Co
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Filing: 1950-11-01
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Granted: 1954-07-13
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Expires: 1970-11-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Mastin
- 👤 Nelson V Seeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
C; C07; C07C; C07C271/00; C07C271/06; C07C265/00; C07C265/14; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
27 words
AS NEW COMPOSITIONS OF MATTER, THE MONOADDUCTS OF A TERTIARY ALCOHOL AND A POLYISOCYANATE SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC, CYCLOALKYLENE, AROMATIC AND NUCLEAR-SUBSTITUTED AROMATIC POLYISOCYANATES.
References Cited (Backward Citations)
US2320704A
Cited
FR898089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |