US2458535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified hydrocarbon compositions and petroleum distillates
Assignee: Individual
•
Filing: 1943-12-29
•
Granted: 1949-01-11
•
Expires: 1963-12-29
Abstract
No abstract record available.
Inventors
- 👤 Shappirio Sol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:10
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10L; C10L1/00; C10L1/10; C10L1/14; C10M137/00; C10M137/02; C10M137/04; C10M137/08; C10M2223/00; C10M2223/10; C10M2227/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2166286A
Cited
US2221162A
Cited
US2257601A
Cited
US2244416A
Cited
US2223941A
Cited
US2338207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |