US2846279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricator and sealing device
Assignee: Individual
•
Filing: 1953-06-22
•
Granted: 1958-08-05
•
Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Day Leslie
- 👤 William A Macnerland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:35
CPC Classifications
B; B61; B61F; B61F17/00; B61F17/02; B61F17/04; B61F17/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49702; Y10T29/49703
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US65857A
Cited
US670034A
Cited
US790220A
Cited
US899352A
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US1001127A
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US1155932A
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US1612024A
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US1673399A
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US2138971A
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US2150935A
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US2141897A
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US2241870A
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US2608751A
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US2534045A
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US2571235A
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US2581020A
Cited
US2686089A
Cited
US2700208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |