US3135415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating roof seal
Assignee: DORCON Inc
•
Filing: 1962-01-23
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Granted: 1964-06-02
•
Expires: 1982-01-23
Abstract
No abstract record available.
Inventors
- 👤 Alexander F Fino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:10
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34; B65D88/42; B65D88/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A FLUID STORAGE TANK WITH A CYLINDRICAL WALL, A BOTTOM, AND A FLOATING COVER MEMBER FOR FLUIDS WITHIN THE TANK ADAPTED TO RISE AND FALL WITH A CHANGE IN THE QUANTITY OF FLUID IN THE TANK, SAID COVER MEMBER BEING OF A SMALLER DIAMETER THAN THE INSIDE OF SAID WALL TO PROVIDE AN ANNULAR SPACE THEREBETWEEN, AND A FLEXIBLE HOLLOW SEALING MEMBER SECURED TO SAID COVER MEMBER AND DISPOSED IN SAID SPACE, AND A PLURALITY OF SELF-CONTAINED INDEPENDENTLY FILLED AND SEALED STAGGERED INFLATABLE MEMBERS CARRIED
Claim 2
Dependent Claim
85 words
A FLUID STORAGE TANK WITH A CYLINDRICAL WALL, A BOTTOM, AND A FLOATING COVER MEMBER FOR FLUIDS WITHIN THE TANK ADAPTED TO RISE AND FALL WITH A CHANGE IN THE QUANTITY OF FLUID IN THE TANK, SAID COVER MEMBER BEING OF A SMALLER DIAMETER THAN THE INSIDE OF SAID WALL TO PROVIDE AN ANNULAR SPACE THEREBETWEEN, AND A FLEXIBLE HOLLOW SEALING MEMBER SECURED TO SAID COVER MEMBER AND DISPOSED IN SAID SPACE, AND A PLURALITY OF SELF-CONTAINED INDEPENDENTLY FILLED AND SEALED STAGGERED INFLATABLE MEMBERS CARRIED
References Cited (Backward Citations)
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US2082194A
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |