US2944538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication system for chain saws
Assignee: Magnaflux Corp
•
Filing: 1956-10-18
•
Granted: 1960-07-12
•
Expires: 1976-10-18
Abstract
No abstract record available.
Inventors
- 👤 Edward F Conway
- 👤 Ruben W Puta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:34
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/12; Y; Y10; Y10T; Y10T83/00; Y10T83/263
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1024862A
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US1574410A
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US2109702A
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US2391730A
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US2650626A
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US2605787A
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FR1047905A
Cited
US2741275A
Cited
US2688989A
Cited
US2748810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |