US2439729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil for industrial purposes and manufacture thereof
Assignee: Usines de Melle SA
•
Filing: 1945-05-08
•
Granted: 1948-04-13
•
Expires: 1965-05-08
Abstract
No abstract record available.
Inventors
- 👤 Guinot Henri Martin
- 👤 Courtier Armand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:00
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/68; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/945
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1741472A
Cited
US1767302A
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GB321187A
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US2071521A
Cited
US2225430A
Cited
US2141593A
Cited
US2149762A
Cited
US2324784A
Cited
US2306261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-13 | 1951-10-13 | 1952-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-13 | 1955-10-13 | 1956-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-13 | 1959-10-13 | 1960-04-13 | $7700.00 | Window Closed / Lapsed |