Patent US2873818A successfully refreshed from Google Patents.
US2873818A
Expired / Lapsed
US
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Air line lubricator
Assignee: Arrow Tools Inc
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Filing: 1954-12-03
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Granted: 1959-02-17
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Expires: 1974-12-03
Abstract
No abstract record available.
Inventors
- 👤 Edward W Veres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:00
CPC Classifications
F; F16; F16N; F16N7/00; F16N7/30; F16N7/32; F16N7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195343A
Cited
US741962A
Cited
US1157588A
Cited
GB169345A
Cited
US1763061A
Cited
US2680496A
Cited
US2737933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |