US3270668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well-treating apparatus
Assignee: Atlantic Research Corp
•
Filing: 1964-12-29
•
Granted: 1966-09-06
•
Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Silver Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:45
CPC Classifications
E; E21; E21B; E21B36/00; E21B36/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN COMBINATION WITH A WELL BORE, A WELL-TREATING APPARATUS INCLUDING A NEUTRAL-THRUST GAS GENERATOR ADAPTED TO BE LOWERED INTO SAID BORE, SAID GAS GENERATOR COMPRISING (A) A TUBULAR CYLINDRICAL CASING HAVING A COMBUSTION SECTION THEREIN, (B) A SOLID PROPELLANT GRAIN MOUNTED WITHIN SAID COMBUSTION SECTION, (C) IGNITION MEANS MOUNTED WITHIN SAID COMBUSTION SECTION TO IGNITE SAID GRAIN, (D) APERTURED MEANS AT EACH END OF SAID CASING TO PROVIDE FLOW COMMUNICATION BETWEEN SAID COMBUSTION SECTION AND THE EXTERNAL ATMOSPHERE CONTIGUOUS TO EACH END OF SAID CASING, AND (E) MEANS TO OBTURATE EACH OF SAID APERTURED MEANS TO EFFECT PREVENTION OF MOISTURE FROM ENTERING SAID CASING AND TO EFFECT BUILD-UP OF A PREDETERMINED PRESSURE WITHIN SAID COMBUSTION SECTION, THE OBTURATION MEANS BEING EJECTED UPON ATTAINMENT OF SAID PREDETERMINED PRESSURE WITHIN SAID COMBUSTION SECTION.
Claim 2
Dependent Claim
131 words
IN COMBINATION WITH A WELL BORE, A WELL-TREATING APPARATUS INCLUDING A NEUTRAL-THRUST GAS GENERATOR ADAPTED TO BE LOWERED INTO SAID BORE, SAID GAS GENERATOR COMPRISING (A) A TUBULAR CYLINDRICAL CASING HAVING A COMBUSTION SECTION THEREIN, (B) A SOLID PROPELLANT GRAIN MOUNTED WITHIN SAID COMBUSTION SECTION, (C) IGNITION MEANS MOUNTED WITHIN SAID COMBUSTION SECTION TO IGNITE SAID GRAIN, (D) APERTURED MEANS AT EACH END OF SAID CASING TO PROVIDE FLOW COMMUNICATION BETWEEN SAID COMBUSTION SECTION AND THE EXTERNAL ATMOSPHERE CONTIGUOUS TO EACH END OF SAID CASING, AND (E) MEANS TO OBTURATE EACH OF SAID APERTURED MEANS TO EFFECT PREVENTION OF MOISTURE FROM ENTERING SAID CASING AND TO EFFECT BUILD-UP OF A PREDETERMINED PRESSURE WITHIN SAID COMBUSTION SECTION, THE OBTURATION MEANS BEING EJECTED UPON ATTAINMENT OF SAID PREDETERMINED PRESSURE WITHIN SAID COMBUSTION SECTION.
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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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |