US3338201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel
Assignee: Mila Ben International Inc
•
Filing: 1965-06-30
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Granted: 1967-08-29
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Expires: 1985-06-30
Abstract
No abstract record available.
Inventors
- 👤 John J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:58
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A SUBSTANTIALLY RIGID PRESSURE DIFFERENTIAL SUSTAINING VESSEL COMPRISING AN OUTER SHELL AND AN INNER SHELL HAVING OPPOSED SURFACE ADJACENT BUT SPACED APART THROUGHOUT THEIR MUTUAL EXTENT BUT BEING JOINED TOGETHER ADJACENT THEIR EDGES TO ENCLOSE THE SPACE BETWEEN THEM AND AT LEAST ONE OF SAID SHELLS HAVING RIGID PROJECTIONS ON ITS SURFACE WHICH IS OPPOSED TO THE OTHER SHELL AND THE OTHER OF SAID SHELLS HAVING ABUTMENT SURFACES DIRECTLY OPPOSED TO AND NORMALLY SLIGHTLY SPACED FROM SAID PROJECTIONS RESPECTIVELY TO BE ENGAGED THEREBY UPON MOVEMENT OF ONE SHELL TOWARD THE OTHER, AND AN EXPOSED SURFACE ON EACH SHELL FACING AWAY FROM THE OTHER SHELL, SAID SHELLS, INDEPENDENTLY OF ANY INFLATION OF THE SPACE BETWEEN THEM, BEING EACH OF SUFFICIENT INHERENT RIGIDITY AND STRENGTH THAT THEY ARE SELF SUPPORTING BUT OF SUFFICIENT FLEXIBILITY SO THAT AT POINTS AT WHICH SAID PROJECTIONS AND ABUTMENT SURFACES ARE NORMALLY SPACED APART THEY MAY FLEX INTO CONTACT WITH EACH OTHER, AND ALSO OF SUFFICIENT ADDITIONAL INHERENT STRENGTH AND RIGIDITY THAT TOGETHER THEY WILL WITHSTAND THE EXPECTED DIFFERENTIAL OF PRESSURES BETWEEN THE
Claim 2
Dependent Claim
176 words
A SUBSTANTIALLY RIGID PRESSURE DIFFERENTIAL SUSTAINING VESSEL COMPRISING AN OUTER SHELL AND AN INNER SHELL HAVING OPPOSED SURFACE ADJACENT BUT SPACED APART THROUGHOUT THEIR MUTUAL EXTENT BUT BEING JOINED TOGETHER ADJACENT THEIR EDGES TO ENCLOSE THE SPACE BETWEEN THEM AND AT LEAST ONE OF SAID SHELLS HAVING RIGID PROJECTIONS ON ITS SURFACE WHICH IS OPPOSED TO THE OTHER SHELL AND THE OTHER OF SAID SHELLS HAVING ABUTMENT SURFACES DIRECTLY OPPOSED TO AND NORMALLY SLIGHTLY SPACED FROM SAID PROJECTIONS RESPECTIVELY TO BE ENGAGED THEREBY UPON MOVEMENT OF ONE SHELL TOWARD THE OTHER, AND AN EXPOSED SURFACE ON EACH SHELL FACING AWAY FROM THE OTHER SHELL, SAID SHELLS, INDEPENDENTLY OF ANY INFLATION OF THE SPACE BETWEEN THEM, BEING EACH OF SUFFICIENT INHERENT RIGIDITY AND STRENGTH THAT THEY ARE SELF SUPPORTING BUT OF SUFFICIENT FLEXIBILITY SO THAT AT POINTS AT WHICH SAID PROJECTIONS AND ABUTMENT SURFACES ARE NORMALLY SPACED APART THEY MAY FLEX INTO CONTACT WITH EACH OTHER, AND ALSO OF SUFFICIENT ADDITIONAL INHERENT STRENGTH AND RIGIDITY THAT TOGETHER THEY WILL WITHSTAND THE EXPECTED DIFFERENTIAL OF PRESSURES BETWEEN THE
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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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |