Patent US2870737A successfully refreshed from Google Patents.
US2870737A
Expired / Lapsed
US
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Equipment for oiling metal surfaces
Assignee: Westoak Machine Corp
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Filing: 1957-01-22
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Granted: 1959-01-27
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Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 James H Byrnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:50
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/02; B21B45/0239; B21B45/0245; B21B45/0248; B21B45/0251; B05; B05C; B05C1/00; B05C1/04; B05C1/08; B05C1/10; C; C23; C23F; C23F15/00; B05C9/00; B05C9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |