US3024285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of biethers of polymethyl-
Assignee: —
•
Filing: —
•
Granted: 1962-03-06
•
Expires: 1979-03-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:57
CPC Classifications
C; C07; C07C; C07C39/00; C07C39/205; C07C39/21; C07C39/215; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C09; C09D; C09D163/00; C09D171/00; C09D171/02; C08L; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A DIETHER OF A POLYMETHYLOL DIPHENYLOLALKANE OF THE FORMULA
Claim 2
Dependent Claim
9 words
A DIETHER OF A POLYMETHYLOL DIPHENYLOLALKANE OF 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) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |