US2725385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adducts of imides and polyisocyanates
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1952-11-04
•
Granted: 1955-11-29
•
Expires: 1972-11-04
Abstract
No abstract record available.
Inventors
- 👤 Nelson V Seeger
- 👤 Thomas G Mastin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:41
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D209/00; C07D209/02; C07D209/44; C07D209/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
AS NEW COMPOSITION OF MATTER THE MONO-ADDUCTS OF (A) AN IMIDE SELECTED FROM THE GROUP CONSISTING OF CARBIMIDE, SUCCINIMIDE, GLUTARIMIDE, PHTHALIMIDE AND NAPHTHALIMIDE AND (B) AND ORGANIC POLYISOCYANATE WHICH IS FREE OF GROUPS CONTAINING ACTIVE HYDROGEN.
Claim 2
Dependent Claim
36 words
AS NEW COMPOSITION OF MATTER THE MONO-ADDUCTS OF (A) AN IMIDE SELECTED FROM THE GROUP CONSISTING OF CARBIMIDE, SUCCINIMIDE, GLUTARIMIDE, PHTHALIMIDE AND NAPHTHALIMIDE AND (B) AND ORGANIC POLYISOCYANATE WHICH IS FREE OF GROUPS CONTAINING ACTIVE HYDROGEN.
References Cited (Backward Citations)
US2374136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |