US2418646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant-coolant collar or ring
Assignee: Individual
•
Filing: 1944-02-29
•
Granted: 1947-04-08
•
Expires: 1964-02-29
Abstract
No abstract record available.
Inventors
- 👤 Janson Leo Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:49
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/10; B23Q11/1007; Y; Y10; Y10S; Y10S29/00; Y10S29/092; Y10S62/00; Y10S62/10; Y10T; Y10T408/00; Y10T408/44; Y10T408/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US365419A
Cited
CA180554A
Cited
US1404016A
Cited
US1660372A
Cited
DE427110C
Cited
DE455772C
Cited
US2278663A
Cited
US2250349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-07 | 1950-10-07 | 1951-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-07 | 1954-10-07 | 1955-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-07 | 1958-10-07 | 1959-04-08 | $7700.00 | Window Closed / Lapsed |