US2463890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined seal and lubrication system
Assignee: PayPal Israel Ltd
•
Filing: 1944-12-09
•
Granted: 1949-03-08
•
Expires: 1964-12-09
Abstract
No abstract record available.
Inventors
- 👤 Wilton G Lundquist
- 👤 Ferdinand P Sollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:53
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/02; F01D11/04; F16; F16N; F16N31/00; F16N31/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806929A
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US832877A
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US1070809A
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US1014850A
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US1369110A
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US1684341A
Cited
US1784104A
Cited
US1879627A
Cited
AU1553033A
Cited
US2133879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |