US3248958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire line deep well pumping apparatus
Assignee: Individual
•
Filing: 1962-04-02
•
Granted: 1966-05-03
•
Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Emil A Bender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:15
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18152; Y10T74/18568; Y10T74/18832; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
A WIRE LINE PUMP APPARATUS FOR OIL WELLS OR THE LIKE, COMPRISING A MOUNTED SHAFT CARRYING A PAIR OF DRUMS, POWER MEANS TO ROTATE SAID DRUMS, A PAIR OF CABLES, SECURED AT ONE TERMINAL END TO THE RESPECTIVE SAID DRUMS, MEDIALLY THEREOF, A COUNTERWEIGHT CARRIED BY SAID CABLES, MEANS TO ATTACH A POLISH ROD OF A PUMP TO THE OPPOSITE TERMINAL END
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |