US3099323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer platform for drill pipe elevators
Assignee: Individual
•
Filing: 1961-08-02
•
Granted: 1963-07-30
•
Expires: 1981-08-02
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:32
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/14; E21B19/02; E21B19/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A TRANSFER PLATFORM FOR DRILL PIPE ELEVATORS, COMPRISING, A BASE MEMBER, A HORIZONTALLY DISPOSED GUIDE FRAME ABOVE THE BASE MEMBER, SUPPORT MEANS INCLUDING VERTICALLY RECIPROCABLE MEMBERS CONNECTING THE GUIDE FRAME TO THE BASE MEMBER OPERABLE TO RAISE AND LOWER THE GUIDE FRAME, A HORIZONTALLY DISPOSED TABLE MEMBER SLIDABLY MOUNTD ON THE GUIDE FRAME FOR MOVEMENT LONGITUDINALLY THEREOF FOR RECEIVING A PIPE ELEVATOR, AND MEANS FOR RECIPROCATING SAID TABLE MEMBER.
Claim 2
Dependent Claim
69 words
A TRANSFER PLATFORM FOR DRILL PIPE ELEVATORS, COMPRISING, A BASE MEMBER, A HORIZONTALLY DISPOSED GUIDE FRAME ABOVE THE BASE MEMBER, SUPPORT MEANS INCLUDING VERTICALLY RECIPROCABLE MEMBERS CONNECTING THE GUIDE FRAME TO THE BASE MEMBER OPERABLE TO RAISE AND LOWER THE GUIDE FRAME, A HORIZONTALLY DISPOSED TABLE MEMBER SLIDABLY MOUNTD ON THE GUIDE FRAME FOR MOVEMENT LONGITUDINALLY THEREOF FOR RECEIVING A PIPE ELEVATOR, AND MEANS FOR RECIPROCATING SAID TABLE MEMBER.
References Cited (Backward Citations)
US2450934A
Cited
US2690847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |