US1372576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating device for the shaft-bearings of rotary pumps
Assignee: FRIED KRUPP AG GERMANIWERFT
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Filing: 1920-12-03
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Granted: 1921-03-22
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Expires: 1940-12-03
Abstract
No abstract record available.
Inventors
- 👤 Tullmann Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:02
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/106; F16C33/1085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1924-03-21 | 1924-09-20 | 1925-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-03-21 | 1928-09-20 | 1929-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-03-21 | 1932-09-20 | 1933-03-22 | $7700.00 | Window Closed / Lapsed |