Patent US4924864A successfully refreshed from Google Patents.
Patent US2558025A successfully refreshed from Google Patents.
US2558025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester drying oil
Assignee: —
•
Filing: —
•
Granted: 1951-06-26
•
Expires: 1968-06-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:46
CPC Classifications
C; C09; C09F; C09F7/00; C09F7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A POLYESTER DRYING OIL COMPRISING A SUBSTANTIALLY COMPLETELY ESTERIFIED POLYDRIC ALCOHOL, THE POLYESTER HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
17 words
A POLYESTER DRYING OIL COMPRISING A SUBSTANTIALLY COMPLETELY ESTERIFIED POLYDRIC ALCOHOL, THE POLYESTER HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2145443A
Cited
US2381888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |