US2604389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed fuel units of diisopropylideneglyoxal
Assignee: Individual
•
Filing: 1949-11-04
•
Granted: 1952-07-22
•
Expires: 1969-11-04
Abstract
No abstract record available.
Inventors
- 👤 Berdick Murray
- 👤 Harold R Hochstadt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:38
CPC Classifications
C; C10; C10L; C10L11/00; C10L11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A COMPRESSED FUEL UNIT COMPRISING DIISOPROPYLIDENEGLYOXAL AS THE MAJOR CONSTITUENT OF SAID FUEL UNIT AND FROM ABOUT 1% TO ABOUT 15% BY WEIGHT OF A SUPPORTING AGENT ADMIXED WITH SAID DIISOPROYLIDENEGLYOXAL, SAID SUPPORTING AGENT BEING SUBSTANTIALLY NON-LUMINOUS AND SUBSTANTIALLY NON-SMOKE-PRODUCING ON COMBUSTION OF SAID DIISOPROPYLIDENEGLYOXAL.
Claim 2
Dependent Claim
45 words
A COMPRESSED FUEL UNIT COMPRISING DIISOPROPYLIDENEGLYOXAL AS THE MAJOR CONSTITUENT OF SAID FUEL UNIT AND FROM ABOUT 1% TO ABOUT 15% BY WEIGHT OF A SUPPORTING AGENT ADMIXED WITH SAID DIISOPROYLIDENEGLYOXAL, SAID SUPPORTING AGENT BEING SUBSTANTIALLY NON-LUMINOUS AND SUBSTANTIALLY NON-SMOKE-PRODUCING ON COMBUSTION OF SAID DIISOPROPYLIDENEGLYOXAL.
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) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |