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US2741275A
Expired / Lapsed
US
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Device for lubricating saw-chains
Assignee: Individual
•
Filing: 1952-01-30
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Granted: 1956-04-10
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Expires: 1972-01-30
Abstract
No abstract record available.
Inventors
- 👤 Johnsen Trygve
- 👤 Busk Gunnar Haldor Karsten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:21
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1450884A
Cited
US1961514A
Cited
US1993588A
Cited
US2109702A
Cited
US2240737A
Cited
FR850443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |