US3052003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support bar and wire rope assembly for polished rods
Assignee: Cabot Corp
•
Filing: 1960-09-15
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Granted: 1962-09-04
•
Expires: 1980-09-15
Abstract
No abstract record available.
Inventors
- 👤 Eyler George
- 👤 Alton W Winborne
- 👤 Rue S Hestand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:52
CPC Classifications
F; F16; F16B; F16B7/00; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/348; Y10T403/349
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1258580A
Cited
US1503932A
Cited
US2241747A
Cited
US2291649A
Cited
US2444842A
Cited
FR995264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |