Patent US3466723A successfully refreshed from Google Patents.
US3466723A
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Methods for erecting tower cranes
Assignee: Richier SA
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Filing: 1966-10-24
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Granted: 1969-09-16
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Expires: 1986-10-24
Abstract
No abstract record available.
Inventors
- 👤 Pierre Durand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:26
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/26; B66C23/34; B66C23/348; B66C23/28; B66C23/283; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49631; Y10T29/49826; Y10T29/49828; Y10T29/53; Y10T29/53539
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) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |