US2728486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating apparatus
Assignee: Rockwell Manufacturing Co
•
Filing: 1950-01-18
•
Granted: 1955-12-27
•
Expires: 1970-01-18
Abstract
No abstract record available.
Inventors
- 👤 George F Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:12
CPC Classifications
F; F16; F16N; F16N5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1554348A
Cited
US1783689A
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US1676424A
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US1764968A
Cited
US2058748A
Cited
US2062031A
Cited
US2320042A
Cited
US2350184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |