Patent US3303660A successfully refreshed from Google Patents.
US3303660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for cryogenic storage
Assignee: Individual
•
Filing: 1965-09-27
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Granted: 1967-02-14
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Clyde H O Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:33
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/02; F17C2221/00; F17C2221/01; F17C2221/014; F17C2221/03; F17C2221/032; F17C2221/033; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2227/03; F17C2227/0337; F17C2227/0339; F17C2227/0341; F17C2227/0355; F17C2227/0367; F17C2227/0369; F17C2227/0374; F17C2265/00; F17C2265/03; F17C2265/032; F17C2265/033; F17C2265/034; F17C2265/037
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A PROCESS COMPRISING THE STEP OF: COMPRESSING THE METHANE RICH VAPOR EMITTED FROM A STORED BODY OF LIQUEFIED NATURAL GAS; CONDENSING THE RESULTANT PRESSURIZED METHANE RICH VAPOR BY CONTACTING SAID PRESSURIZED VAPOR IN AN INDIRECT HEAT EXCHANGE RELATIONSHIP IN A PLURALITY OF STAGES WITH A PORTION OF SAID BODY OF LIQUEFIED NATURAL GAS TO VAPORIZE AT LEAST A PART OF THE METHANE FROM SAID PORTION OF LIQUIFIED NATURAL GAS, AND LEAVE A HIGHER BOILING HYDROCARBON LIQUID RESIDUE; PASSING BOTH SAID VAPORIZED METHANE AND SAID LIQUID RESIDUE THROUGH SAID PLURALITY OF STAGES TOGETHER; WITHDRAWING SAID VAPORIZED METHANE AND SAID LIQUID RESIDUE SEPARATELY FROM THE LAST OF SAID STAGE; COMBINING A STREAM OF SAID LIQUID RESIDUE AND SAID VAPORIZED METHANE TO PRODUCE A COMBINED STREAM; FLASHING THE PRESURIZED CONDENSATE PRODUCED IN SAID CONDENSING STEP TO PRODUCE A LIQUID FRACTION AND A VAPOR FRACTION; COMBINING SAID LIQUID FRACTION WITH THE STORED BODY OF LIQUIFIED NATURAL GAS; AND RETURNING SAID VAPOR FRACTION IN SAID COMPRESSING STEP.
Claim 2
Dependent Claim
162 words
A PROCESS COMPRISING THE STEP OF: COMPRESSING THE METHANE RICH VAPOR EMITTED FROM A STORED BODY OF LIQUEFIED NATURAL GAS; CONDENSING THE RESULTANT PRESSURIZED METHANE RICH VAPOR BY CONTACTING SAID PRESSURIZED VAPOR IN AN INDIRECT HEAT EXCHANGE RELATIONSHIP IN A PLURALITY OF STAGES WITH A PORTION OF SAID BODY OF LIQUEFIED NATURAL GAS TO VAPORIZE AT LEAST A PART OF THE METHANE FROM SAID PORTION OF LIQUIFIED NATURAL GAS, AND LEAVE A HIGHER BOILING HYDROCARBON LIQUID RESIDUE; PASSING BOTH SAID VAPORIZED METHANE AND SAID LIQUID RESIDUE THROUGH SAID PLURALITY OF STAGES TOGETHER; WITHDRAWING SAID VAPORIZED METHANE AND SAID LIQUID RESIDUE SEPARATELY FROM THE LAST OF SAID STAGE; COMBINING A STREAM OF SAID LIQUID RESIDUE AND SAID VAPORIZED METHANE TO PRODUCE A COMBINED STREAM; FLASHING THE PRESURIZED CONDENSATE PRODUCED IN SAID CONDENSING STEP TO PRODUCE A LIQUID FRACTION AND A VAPOR FRACTION; COMBINING SAID LIQUID FRACTION WITH THE STORED BODY OF LIQUIFIED NATURAL GAS; AND RETURNING SAID VAPOR FRACTION IN SAID COMPRESSING STEP.
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |