Patent US3202822A successfully refreshed from Google Patents.
US3202822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of determining density utilizing a gamma ray source and a pair of detectors
Assignee: Phillips Petroleum Co
•
Filing: 1961-11-13
•
Granted: 1965-08-24
•
Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 Kehler Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:21
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/12; G01V5/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD FOR DETERMING THE DENSITY OF A MATERIAL, WHICH METHOD COMPRISES: PASSING GAMMA RAYS FROM A SOURCE INTO SAID MATERIAL ALONG AT LEAST ONE TRAJECTORY AT AN INCIDENT ANGLE $ WITH RESPECT TO A REFERENCE PLANE IN WHICH SAID SOURCE IS POSITIONED; RECEIVING RESPECTIVELY FROM WITHIN SAID MATERIAL AT AN ANGLE A WITH RESPECT TO SAID REFERENCE PLANE ON FIRST AND SECOND DETECTORS, UNEQUALLY SPACED APART FROM SAID SOURCE, COMPTON SCATTERED PHOTONS WHICH HAVE BEEN SCATTERED AT AN AGLE O WITH RE-
Claim 2
Independent Claim
83 words
A METHOD FOR DETERMING THE DENSITY OF A MATERIAL, WHICH METHOD COMPRISES: PASSING GAMMA RAYS FROM A SOURCE INTO SAID MATERIAL ALONG AT LEAST ONE TRAJECTORY AT AN INCIDENT ANGLE $ WITH RESPECT TO A REFERENCE PLANE IN WHICH SAID SOURCE IS POSITIONED; RECEIVING RESPECTIVELY FROM WITHIN SAID MATERIAL AT AN ANGLE A WITH RESPECT TO SAID REFERENCE PLANE ON FIRST AND SECOND DETECTORS, UNEQUALLY SPACED APART FROM SAID SOURCE, COMPTON SCATTERED PHOTONS WHICH HAVE BEEN SCATTERED AT AN AGLE O WITH RE-
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |