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US2550865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flange oiler
Assignee: Individual
•
Filing: 1948-07-19
•
Granted: 1951-05-01
•
Expires: 1968-07-19
Abstract
No abstract record available.
Inventors
- 👤 Ross Frank
- 👤 Jr Frank E Ross
- 👤 Harley G Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:23
CPC Classifications
B; B61; B61K; B61K3/00; B61K3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE17126E
Cited
US1877070A
Cited
US1877848A
Cited
US1934407A
Cited
US1979056A
Cited
US2281400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |