US2137659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing packer
Assignee: Shell Development Co
•
Filing: 1936-11-23
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Granted: 1938-11-22
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Expires: 1956-11-23
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand G Welke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:23
CPC Classifications
F; F16; F16N; F16N37/00; F16N37/003; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6603; F16C33/6622; F16C43/00; F16C43/04; F16C19/00; F16C19/22; F16C19/34; F16C19/36; F16C19/364; F16C2326/00; F16C2326/01; F16C2326/02
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) | 1941-11-21 | 1942-05-23 | 1942-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-21 | 1946-05-23 | 1946-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-21 | 1950-05-23 | 1950-11-22 | $7700.00 | Window Closed / Lapsed |