Patent US3387738A successfully refreshed from Google Patents.
US3387738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
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Filing: 1965-10-08
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Granted: 1968-06-11
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Norman H Kemp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:27
CPC Classifications
C; C12; C12C; C12C7/00; C12C7/04; C12C7/047; C12C1/00; C12C1/02; C12C7/01; F; F16; F16J; F16J13/00; F16J13/02; F16J13/06; F16L; F16L2101/00; F16L2101/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
MEANS FOR SEALING ABOUT A PASSAGE COMPRISING, A SEAL RING RECEPTACLE, INCLUDING AN ANNULAR SKIRT PORTION, A SEAL RING DISPOSED WITHIN THE SKIRT, SAID SEAL RING COMPRISED OF AN OUTER LIP HAVING AN OUTER SURFACE CONFORMABLE TO THE INNER SURFACE OF THE SKIRT, AND AN INWARDLY EXTENDING FLANGE HAVING A LOWER SURFACE CONFORMABLE WITH THE SURFACE ABOUT THE PASSAGE, SAID SEAL RING BEING FREE OF ATTACHMENT TO THE SKIRT AND THE SURFACE ABOUT THE PASSAGE AND BEING FREELY MOVABLE WITH RESPECT TO THE SKIRT AFTER THE RECEPTACLE IS ATTACHED ABOUT THE PASSAGE; AND MEANS TO ATTACH THE RECEPTACLE ABOUT THE PASSAGE WITH THE LOWER SURFACE OF THE SEAL IN CONTACT WITH THE SURFACE ABOUT THE PASSAGE.
Claim 2
Dependent Claim
116 words
MEANS FOR SEALING ABOUT A PASSAGE COMPRISING, A SEAL RING RECEPTACLE, INCLUDING AN ANNULAR SKIRT PORTION, A SEAL RING DISPOSED WITHIN THE SKIRT, SAID SEAL RING COMPRISED OF AN OUTER LIP HAVING AN OUTER SURFACE CONFORMABLE TO THE INNER SURFACE OF THE SKIRT, AND AN INWARDLY EXTENDING FLANGE HAVING A LOWER SURFACE CONFORMABLE WITH THE SURFACE ABOUT THE PASSAGE, SAID SEAL RING BEING FREE OF ATTACHMENT TO THE SKIRT AND THE SURFACE ABOUT THE PASSAGE AND BEING FREELY MOVABLE WITH RESPECT TO THE SKIRT AFTER THE RECEPTACLE IS ATTACHED ABOUT THE PASSAGE; AND MEANS TO ATTACH THE RECEPTACLE ABOUT THE PASSAGE WITH THE LOWER SURFACE OF THE SEAL IN CONTACT WITH THE SURFACE ABOUT THE PASSAGE.
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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |