US2831330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Candle
Assignee: Standard Oil Co
•
Filing: 1957-01-28
•
Granted: 1958-04-22
•
Expires: 1977-01-28
Abstract
No abstract record available.
Inventors
- 👤 Donald C Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:37
CPC Classifications
C; C11; C11C; C11C5/00; C11C5/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A CANDLE HAVING A REDUCED BURNING RATE WHICH COMPRISES ESSENTIALLY A WICK AND A NORMALLY SOLID WAX BODY, SAID WAX BODY COMPRISING FROM ABOUT 0.1% TO ABOUT 10% OF A POLYBUTENE HAVING A MOLECULAR WEIGHT FROM ABOUT 50,000 TO ABOUT 500,000.
Claim 2
Dependent Claim
41 words
A CANDLE HAVING A REDUCED BURNING RATE WHICH COMPRISES ESSENTIALLY A WICK AND A NORMALLY SOLID WAX BODY, SAID WAX BODY COMPRISING FROM ABOUT 0.1% TO ABOUT 10% OF A POLYBUTENE HAVING A MOLECULAR WEIGHT FROM ABOUT 50,000 TO ABOUT 500,000.
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) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |