US2957844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polythiourea and polyepoxide co-cured resins
Assignee: Monsanto Chemicals Ltd
•
Filing: 1958-12-31
•
Granted: 1960-10-25
•
Expires: 1978-12-31
Abstract
No abstract record available.
Inventors
- 👤 George L Wesp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:34
CPC Classifications
C; C08; C08L; C08L63/00; C08G; C08G59/00; C08G59/18; C08G59/20; C08L75/00; C08L75/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A RESIN COMPOSITION COMPRISING A MIXTURE OF A LINEAR POLYTHIOUREA POLYMER HAVING RECURRING UNITS OF THE FORMULA
Claim 2
Dependent Claim
17 words
A RESIN COMPOSITION COMPRISING A MIXTURE OF A LINEAR POLYTHIOUREA POLYMER HAVING RECURRING UNITS OF THE FORMULA
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) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |