US3206426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxy aryl esters of organic chloroformates
Assignee: Dow Chemical Co
•
Filing: 1961-05-12
•
Granted: 1965-09-14
•
Expires: 1981-05-12
Abstract
No abstract record available.
Inventors
- 👤 Keskkula Henno
- 👤 John A Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:20
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/96; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
33 words
A LUBRICATED POLYMER COMPRISING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF VINYL BENZENE POLYMERS AND POLYCARBONATE ESTER RESIN CONTAINING FROM 1.5 TO 2.5 PERCENT BY WEIGHT OF A COMPOUND OF CLAIM 3.
References Cited (Backward Citations)
US2379250A
Cited
US2381511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |