Patent US3340232A successfully refreshed from Google Patents.
US3340232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin which is reaction product of aryl diamine and aromatic aldehyde and process of making same
Assignee: Dow Chemical Co
•
Filing: 1964-01-27
•
Granted: 1967-09-05
•
Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Harry A Smith
- 👤 William K Carrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:50
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/04; C08G12/06; C08G12/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A LINEAR FILM-FORMING SYNTHETIC RESINOUS POLYMER COMPRISING THE REACTION PRODUCT OF REACTANTS CONSISTING ESSENTIALLY OF (A) AN AROMATIC POLYAMINE HAVING THE FORMULA
Claim 2
Dependent Claim
22 words
A LINEAR FILM-FORMING SYNTHETIC RESINOUS POLYMER COMPRISING THE REACTION PRODUCT OF REACTANTS CONSISTING ESSENTIALLY OF (A) AN AROMATIC POLYAMINE HAVING 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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |