US2579759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinifying hydroxyl formyl acetophenones, acetoxy benzaldehydes, and methoxy derivatves thereof
Assignee: Individual
•
Filing: 1948-09-18
•
Granted: 1951-12-25
•
Expires: 1968-09-18
Abstract
No abstract record available.
Inventors
- 👤 Chester R Shook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:57
CPC Classifications
C; C08; C08G; C08G6/00; C08G6/02; Y; Y10; Y10S; Y10S260/00; Y10S260/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A PROCESS COMPRISING HEATING TO AT LEAST 60* C. A FORMYL ACETOPHENONE DERIVATIVE OF THE FORMULA
Claim 2
Dependent Claim
16 words
A PROCESS COMPRISING HEATING TO AT LEAST 60* C. A FORMYL ACETOPHENONE DERIVATIVE OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |