Patent US3249363A successfully refreshed from Google Patents.
US3249363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal and method of installing same
Assignee: Library and Archives Canada
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Filing: 1963-06-17
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Granted: 1966-05-03
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Victor G M Chatfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:32
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3268; F16J15/3272; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
THE METHOD OF INSTALLING A SEAL ON A SHAFT WITHOUT THE NECESSITY OF ACCESS TO EITHER END OF THE SHAFT COMPRISING, PROVIDING AN ENDLESS MEMBER OF SEAL MATERIAL OF A LENGTH SUBSTANTIALLY TWICE THE CIRCUMFERENCE OF SAID SHAFT, WRAPPING SAID MEMBER AND AROUND SAID SHAFT, PROVIDING A FILLER BETWEEN THE ENDS OF SAID MEMBER, AND FORCING SAID MEMBER AND FILLER TOGETHER AXIALLY INTO A CAVITY IN A HOUSING SURROUNDING SAID SHAFT.
References Cited (Backward Citations)
US2726886A
Cited
US3183587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |