US3112233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drilling fluid containing explosive composition
Assignee: Jersey Production Research Co
•
Filing: 1962-03-26
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Granted: 1963-11-26
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Robert H Friedman
- 👤 Jr Leon H Robinson
- 👤 Jack H Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:28
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/04; C09K8/14; C09K8/16; E; E21; E21B; E21B7/00; E21B7/007; Y; Y10; Y10S; Y10S507/00; Y10S507/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
AN AQUEOUS DRILLING FLUID COMPRISING DRILLING MUD CONTAINING PARTICLES OF EXPLOSIVE SELECTED FROM THE GROUP CONSISTING OF LEAD PICRATE, GUHR DYNAMITE, MIXTURES OF MERCURY FULMINATE WITH POTASSIUM PERCHLORATE, AND MIXTURES OF ANTIMONY TRISULFIDE, LEAD TRIAZIDE, AND NITROGEN TRIIODIDE WITH DYNAMITE, TRINITROTOLUENE, AND PENTAERYTHRITOL TETRANITRATE, HAVING A DROP SENSITIVITY AS MEASURED BY THE DROP SENSITIVITY TEST WITHIN THE RANGE FROM ABOUT 2 TO ABOUT 10 CM. AND HAVING A DRY ENCAPSULATING COATING SELECTED FROM THE GROUP CONSISTING OF GELATINE, GUM ARABIC, GUM TRAGACANTH, GUAR SEED GUM, POLYVINYL ALCOHOL, CARBOXYLATED METHYL CELLULOSE, BENZOIN, CAMPHOR, AND DIPHENYL UREA, SAID PARTICLES BEING OF A SIZE WITHIN THE RANGE FROM ABOUT 0.01 TO ABOUT 0.25 INCH, THE COATING ON SAID PARTICLES BEING WATER SOLUBLE, SAID EXPLOSIVE BEING REND-
Claim 2
Dependent Claim
123 words
AN AQUEOUS DRILLING FLUID COMPRISING DRILLING MUD CONTAINING PARTICLES OF EXPLOSIVE SELECTED FROM THE GROUP CONSISTING OF LEAD PICRATE, GUHR DYNAMITE, MIXTURES OF MERCURY FULMINATE WITH POTASSIUM PERCHLORATE, AND MIXTURES OF ANTIMONY TRISULFIDE, LEAD TRIAZIDE, AND NITROGEN TRIIODIDE WITH DYNAMITE, TRINITROTOLUENE, AND PENTAERYTHRITOL TETRANITRATE, HAVING A DROP SENSITIVITY AS MEASURED BY THE DROP SENSITIVITY TEST WITHIN THE RANGE FROM ABOUT 2 TO ABOUT 10 CM. AND HAVING A DRY ENCAPSULATING COATING SELECTED FROM THE GROUP CONSISTING OF GELATINE, GUM ARABIC, GUM TRAGACANTH, GUAR SEED GUM, POLYVINYL ALCOHOL, CARBOXYLATED METHYL CELLULOSE, BENZOIN, CAMPHOR, AND DIPHENYL UREA, SAID PARTICLES BEING OF A SIZE WITHIN THE RANGE FROM ABOUT 0.01 TO ABOUT 0.25 INCH, THE COATING ON SAID PARTICLES BEING WATER SOLUBLE, SAID EXPLOSIVE BEING REND-
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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) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |