US2516918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible bearing construction
Assignee: Allis Chalmers Corp
•
Filing: 1946-11-13
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Granted: 1950-08-01
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Expires: 1966-11-13
Abstract
No abstract record available.
Inventors
- 👤 Alexander J Roubal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:54
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/40; B; B01; B01F; B01F35/00; B01F35/40; B01F35/41; B01F35/411; B01F35/4111; F16C; F16C33/00; F16C33/72; F16C33/74; B01F35/30; B01F35/32; B01F35/321; B01F35/3214
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US714007A
Cited
US2143373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |