US3144778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping unit with improved flexibly connected beam
Assignee: AMERICAN Manufacturing CO OF TEXAS
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Filing: 1962-04-05
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Granted: 1964-08-18
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Expires: 1982-04-05
Abstract
No abstract record available.
Inventors
- 👤 Lott John Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:11
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/02; F16; F16H; F16H21/00; F16H21/10; F16H21/16; F16H21/18; F16H21/22; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18176; Y10T74/18182
Claims Analysis
Total Claims: 0
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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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |