US3271733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic well logging device
Assignee: Schlumberger Well Surveying Corp
•
Filing: 1964-07-08
•
Granted: 1966-09-06
•
Expires: 1984-07-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter E Cubberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:19
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/52; G01V1/523
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN ACOUSTIC WELL LOGGING DEVICE COMPRISING AN ELONGATED SUPPORT MEMBER, ELECTROACOUSTIC TRANSDUCERS MOUNTED AT SPACED-APART LOCATIONS ON SAID SUPPORT MEMBER, A SLEEVE OF FLUID IMPERMEABLE MATERIAL SURROUNDING SAID TRANSDUCERS AND HAVING CLOSELY SPACED TRANSVERSELY EXTENDING CONVOLUTIONS IN AT LEAST THE PORTION THEREOF BETWEEN SAID TRANSDUCERS FOR RESTRICTING THE TRANSMISSION OF SONIC SIGNALS DIRECTLY BETWEEN SAID TRANSDUCERS, AND SEALING MEANS BETWEEN SAID SUPPORT MEMBER AND SAID SLEEVE TO FORM A FLUID TIGHT CHAMBER FOR SAID TRANSDUCERS.
Claim 2
Dependent Claim
75 words
AN ACOUSTIC WELL LOGGING DEVICE COMPRISING AN ELONGATED SUPPORT MEMBER, ELECTROACOUSTIC TRANSDUCERS MOUNTED AT SPACED-APART LOCATIONS ON SAID SUPPORT MEMBER, A SLEEVE OF FLUID IMPERMEABLE MATERIAL SURROUNDING SAID TRANSDUCERS AND HAVING CLOSELY SPACED TRANSVERSELY EXTENDING CONVOLUTIONS IN AT LEAST THE PORTION THEREOF BETWEEN SAID TRANSDUCERS FOR RESTRICTING THE TRANSMISSION OF SONIC SIGNALS DIRECTLY BETWEEN SAID TRANSDUCERS, AND SEALING MEANS BETWEEN SAID SUPPORT MEMBER AND SAID SLEEVE TO FORM A FLUID TIGHT CHAMBER FOR SAID TRANSDUCERS.
References Cited (Backward Citations)
No citation records indexed.
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 |