US3100528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for using inert gas
Assignee: Big Three Welding Equipment Co
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Filing: 1961-02-06
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Granted: 1963-08-13
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Expires: 1981-02-06
Abstract
No abstract record available.
Inventors
- 👤 Ray A Plummer
- 👤 Arthur W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:05
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/255; Y; Y10; Y10S; Y10S166/00; Y10S166/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
METHOD FOR PERFORMING WELL OPERATIONS, COMPRISING AT THE WELL SITE, PUMPING A STREAM OF LIQUID INERT GAS TO INCREASE ITS PRESSURE, HEATING THE PUMPED LIQUIFIED GAS TO VAPORIZE THE GAS TO FORM HIGH PRESSURE INERT GAS, GASIFYING A REAGENT IN LIQUID FORM WITH SAID HIGH PRESSURE INERT GAS PREPARED AT THE WELL SITE, PASSING THE GASIFIED REAGENT INTO THE WELL UNDER PRESSURE TO CONTACT DESIRED PORTIONS OF THE WELL AND FORMATIONS THROUGH WHICH THE
Claim 2
Dependent Claim
74 words
METHOD FOR PERFORMING WELL OPERATIONS, COMPRISING AT THE WELL SITE, PUMPING A STREAM OF LIQUID INERT GAS TO INCREASE ITS PRESSURE, HEATING THE PUMPED LIQUIFIED GAS TO VAPORIZE THE GAS TO FORM HIGH PRESSURE INERT GAS, GASIFYING A REAGENT IN LIQUID FORM WITH SAID HIGH PRESSURE INERT GAS PREPARED AT THE WELL SITE, PASSING THE GASIFIED REAGENT INTO THE WELL UNDER PRESSURE TO CONTACT DESIRED PORTIONS OF THE WELL AND FORMATIONS THROUGH WHICH THE
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |