US3184441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-drying esters of 1, 3-cyclic acetals
Assignee: EIDP Inc
•
Filing: 1959-04-06
•
Granted: 1965-05-18
•
Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 Fang James Chen-Shang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28; C08F24/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
8 words
AN AIR-DRYING CHEMILCAL COMPOUND REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
8 words
AN AIR-DRYING CHEMILCAL COMPOUND REPRESENTED BY THE FORMULA:
Claim 3
Dependent Claim
21 words
AN AIR-DRYING COATING COMPOSITION CONSISTING ESSENTIALLY OF AT LEAST ABOUT 20%, BY WEIGHT, OF AT LEAST ONE COMPOUND OF CLAIM 1.
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) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |