US3195656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Straight line earth drilling apparatus
Assignee: HYDRA MIGHT CO
•
Filing: 1961-06-02
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Granted: 1965-07-20
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Expires: 1981-06-02
Abstract
No abstract record available.
Inventors
- 👤 William E Johnson
- 👤 Jerry R Lairson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:08
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/08; E21B19/087; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/18928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN AN EARTH DRILLING APPARATUS, THE COMBINATION OF A MOBIL CARRIER, A SUPPORT MOUNTED ON SAID CARRIER FOR TURNING MOVEMENT ABOUT A HORIZONTAL AXIS, A FRAME MOUNTED ON SAID SUPPORT FOR TUNNING MOVEMENT ABOUT AN AXIS TRANSVERSE TO SAID HORIZONTAL AXIS, AN ELONGATED BOOM HAVING AN INNER END PORTION PIVOTALLY CONNECTED TO SAID
Claim 2
Dependent Claim
53 words
IN AN EARTH DRILLING APPARATUS, THE COMBINATION OF A MOBIL CARRIER, A SUPPORT MOUNTED ON SAID CARRIER FOR TURNING MOVEMENT ABOUT A HORIZONTAL AXIS, A FRAME MOUNTED ON SAID SUPPORT FOR TUNNING MOVEMENT ABOUT AN AXIS TRANSVERSE TO SAID HORIZONTAL AXIS, AN ELONGATED BOOM HAVING AN INNER END PORTION PIVOTALLY CONNECTED TO SAID
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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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |