Patent US3390710A successfully refreshed from Google Patents.
US3390710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain saw
Assignee: Outboard Marine Corp
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Filing: 1966-04-14
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Granted: 1968-07-02
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Expires: 1986-04-14
Abstract
No abstract record available.
Inventors
- 👤 Cecil T Cookson
- 👤 Hayo E Deelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:49
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/14; B27B17/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A CHAIN SAW COMPRISING A PRIME MOVER, A HOUSING A CUTTER BAR ADJUSTABLY MOUNTED ON SAID HOUSING AND FIXED TO SAID HOUSING DURING NORMAL OPERATION OF SAID CHAIN SAW AND INCLUDING A SAW CHAIN ENTRANCE END, A SPROCKET OPERATIVELY CONNECTED TO SAID PRIME MOVER ADJACENT TO SAID SAW CHAIN ENTRANCE, END, AN ENDLESS CHAIN TRAINED AROUND SAID CUTTER BAR AND SAID SPROCKET AND INCLUDING A PORTION PROVIDED BY A SPAN OF SAW CHAIN BETWEEN SAID SPROCKET AND SAID ENTRANCE END OF SAID HOUSING AND CAM PLATE MOVABLY SUPPORTED BY ONE END OF SAID HOUSING AND SAID CUTTER BAR AND LOCATED BETWEEN SAID SPROCKET AND SAID ENTRANCE END OF SAID CUTTER BAR FOR ENGAGEMENT WITH SAID PORTION OF SAID SAW CHAIN, SPRING MEANS SUPPORTED BY ONE OF SAID HOUSING AND CUTTER BAR FOR BIASING SAID CAM PLATE INTO ENGAGEMENT WITH SAID PORTION OF SAID SAW CHAIN, WHEREBY SAID SAW CHAIN PORTION IS TENSIONED, AND MEANS FOR GUIDING FOR MOVEMENT OF SAID CAM PLATE ALONG A PATH GENERALLY CONCENTRIC WITH THE AXIS OF SAID SPROCKET
Claim 2
Dependent Claim
173 words
A CHAIN SAW COMPRISING A PRIME MOVER, A HOUSING A CUTTER BAR ADJUSTABLY MOUNTED ON SAID HOUSING AND FIXED TO SAID HOUSING DURING NORMAL OPERATION OF SAID CHAIN SAW AND INCLUDING A SAW CHAIN ENTRANCE END, A SPROCKET OPERATIVELY CONNECTED TO SAID PRIME MOVER ADJACENT TO SAID SAW CHAIN ENTRANCE, END, AN ENDLESS CHAIN TRAINED AROUND SAID CUTTER BAR AND SAID SPROCKET AND INCLUDING A PORTION PROVIDED BY A SPAN OF SAW CHAIN BETWEEN SAID SPROCKET AND SAID ENTRANCE END OF SAID HOUSING AND CAM PLATE MOVABLY SUPPORTED BY ONE END OF SAID HOUSING AND SAID CUTTER BAR AND LOCATED BETWEEN SAID SPROCKET AND SAID ENTRANCE END OF SAID CUTTER BAR FOR ENGAGEMENT WITH SAID PORTION OF SAID SAW CHAIN, SPRING MEANS SUPPORTED BY ONE OF SAID HOUSING AND CUTTER BAR FOR BIASING SAID CAM PLATE INTO ENGAGEMENT WITH SAID PORTION OF SAID SAW CHAIN, WHEREBY SAID SAW CHAIN PORTION IS TENSIONED, AND MEANS FOR GUIDING FOR MOVEMENT OF SAID CAM PLATE ALONG A PATH GENERALLY CONCENTRIC WITH THE AXIS OF SAID SPROCKET
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |