US3265133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas well treatment apparatus
Assignee: Individual
•
Filing: 1965-07-27
•
Granted: 1966-08-09
•
Expires: 1985-07-27
Abstract
No abstract record available.
Inventors
- 👤 Burch Julius Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:01
CPC Classifications
E; E21; E21B; E21B37/00; E21B37/10; E21B43/00; E21B43/12; E21B43/121; E21B43/13; E21B43/34; E21B43/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
APPARATUS FOR TREATING A GAS PRODUCING WELL ALSO PRODUCING WATER SAID APPARATUS COMPRISING AN EXPANSIBLE HOLLOW U-SHAPED PLUG INSOLUBLE IN WATER AND OIL, HEMISPHERICAL AND IMPERFORATE AT ITS TOP, THE TOP HAVING A CYLINDRICAL SKIRT FIRMLY ATTACHED TO THE BOTTOM THEREOF, AND A CONTAINER FOR AND SEPARABLE FROM SAID PLUG, SAID CONTAINER HAVING SIDES THAT ENCOMPASS SAID PLUG, SAID PLUG LONGITUDINALLY FOLDED THEREBETWEEN, SAID CONTAINER HAVING A SMALLER EXTERNAL DIAMETER THAN THE EXTERNAL DIAMETER OF SAID PLUG IN ITS UNFOLDED CONDITION, AND SAID CONTAINER AND SAID PLUG HAVING A GREATER SPECIFIC GRAVITY THAN WATER, AND WHEREIN SAID PLUG IS FORMED OF RUBBERR AND THE TOP PORTION THERE OF IS REINFORCED BY TIRE CORD, AND WHEREIN SAID CONTAINER COMPRISES A WATERSOLUBLE HOLLOW CYLINDRICAL SHELL AND A SOLID WATERSOLUBLE POINTED BASE ATTACHED TO ONE END OF SAID CYLINDER.
Claim 2
Dependent Claim
136 words
APPARATUS FOR TREATING A GAS PRODUCING WELL ALSO PRODUCING WATER SAID APPARATUS COMPRISING AN EXPANSIBLE HOLLOW U-SHAPED PLUG INSOLUBLE IN WATER AND OIL, HEMISPHERICAL AND IMPERFORATE AT ITS TOP, THE TOP HAVING A CYLINDRICAL SKIRT FIRMLY ATTACHED TO THE BOTTOM THEREOF, AND A CONTAINER FOR AND SEPARABLE FROM SAID PLUG, SAID CONTAINER HAVING SIDES THAT ENCOMPASS SAID PLUG, SAID PLUG LONGITUDINALLY FOLDED THEREBETWEEN, SAID CONTAINER HAVING A SMALLER EXTERNAL DIAMETER THAN THE EXTERNAL DIAMETER OF SAID PLUG IN ITS UNFOLDED CONDITION, AND SAID CONTAINER AND SAID PLUG HAVING A GREATER SPECIFIC GRAVITY THAN WATER, AND WHEREIN SAID PLUG IS FORMED OF RUBBERR AND THE TOP PORTION THERE OF IS REINFORCED BY TIRE CORD, AND WHEREIN SAID CONTAINER COMPRISES A WATERSOLUBLE HOLLOW CYLINDRICAL SHELL AND A SOLID WATERSOLUBLE POINTED BASE ATTACHED TO ONE END OF SAID CYLINDER.
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |