US2497061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkanedione dioximes as antioxidants for preserving organic compositions which tend to deteriorate by the absorption of oxygen from the air
Assignee: Individual
•
Filing: 1947-03-24
•
Granted: 1950-02-14
•
Expires: 1967-03-24
Abstract
No abstract record available.
Inventors
- 👤 Henry B Kellog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:00
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/32; C08K5/33; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/044; C10M2207/046; C10M2207/08; C10M2207/09; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/14; C10M2215/24; C10M2215/28; C10N; C10N2030/00; C10N2030/12; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
AN ORGANIC SUBSTANCE WHICH TENDS TO DETERIORATE BY THE ABSORPTION OF OXYGEN FROM THE AIR CONTAINING, IN ANTI-OXIDIZING AMOUNT, AN ALKANEDIONE DIOXIME OF THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
27 words
AN ORGANIC SUBSTANCE WHICH TENDS TO DETERIORATE BY THE ABSORPTION OF OXYGEN FROM THE AIR CONTAINING, IN ANTI-OXIDIZING AMOUNT, AN ALKANEDIONE DIOXIME OF THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US2146735A
Cited
US2260256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |