Patent US2954676A successfully refreshed from Google Patents.
US2954676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting assembly for structures
Assignee: Jersey Production Research Co
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Filing: 1957-05-13
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Granted: 1960-10-04
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Expires: 1977-05-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Guy
- 👤 Leo J Castellanos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:40
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/02; E02B17/021; E02B17/04; E02B17/08; E02B17/0809; E02B17/0836; E02B17/0872; E02B2017/0056; E02B2017/0073; E02B2017/0082; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1529; Y10T74/18; Y10T74/1856; Y10T74/18992
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) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |