US3016767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for compensating for gradual changes in load on a walking beam pump
Assignee: Texaco Inc
•
Filing: 1957-08-22
•
Granted: 1962-01-16
•
Expires: 1977-08-22
Abstract
No abstract record available.
Inventors
- 👤 Edmond F Egan
- 👤 Laurence M Hubby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:37
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/28; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156
Claims Analysis
Total Claims: 0
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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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |