US2946819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing carbodimides
Assignee: GAF Chemicals Corp
•
Filing: 1958-04-14
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Granted: 1960-07-26
•
Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 Robert F Coles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:10
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/02; C08G18/025; C07; C07C; C07C267/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PROCESS OF PRODUCING A CARBODIIMIDE OF THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
11 words
A PROCESS OF PRODUCING A CARBODIIMIDE OF THE FOLLOWING GENERAL 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) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |