US3262903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Green chromium oxide pigment in epoxy resin and phosphatized epoxy resin coatings
Assignee: EIDP Inc
•
Filing: 1963-06-27
•
Granted: 1966-07-26
•
Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 James A Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:30
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4071; C09; C09D; C09D163/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
THE COMPOSITION COMPRISING (1) THE REACTION PRODUCT OF A NORMALLY SOLID POLYEPOXIDE HAVING MORE THAN ONE EPOXY GROUP PER MOLECULE, WITH ORTHOPHOSPHORIC ACID IN AN AMOUNT EQUAL TO AT LEAST 0.5 AND LESS THAN 0.1 MOLECULE OF ORTHOPHOSPHORIC ACID PER EPOXY GROUP, AND (2) ABOUT 2 TO 30 PARTS BY WEIGHT OF GREEN CHROMIUM OXIDE PER 100 PARTS BY WEIGHT OF SAID REACTION PRODUCT.
Claim 2
Dependent Claim
64 words
THE COMPOSITION COMPRISING (1) THE REACTION PRODUCT OF A NORMALLY SOLID POLYEPOXIDE HAVING MORE THAN ONE EPOXY GROUP PER MOLECULE, WITH ORTHOPHOSPHORIC ACID IN AN AMOUNT EQUAL TO AT LEAST 0.5 AND LESS THAN 0.1 MOLECULE OF ORTHOPHOSPHORIC ACID PER EPOXY GROUP, AND (2) ABOUT 2 TO 30 PARTS BY WEIGHT OF GREEN CHROMIUM OXIDE PER 100 PARTS BY WEIGHT OF SAID REACTION PRODUCT.
References Cited (Backward Citations)
US3123582A
Cited
US2541027A
Cited
US2723971A
Cited
US2800422A
Cited
US2692876A
Cited
US2793932A
Cited
US2991262A
Cited
US2961341A
Cited
US2990497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |