Patent US2385722A successfully refreshed from Google Patents.
Patent US2966228A successfully refreshed from Google Patents.
US2966228A
Expired / Lapsed
US
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Adjustable side shell staging
Assignee: Bethlehem Steel Corp
•
Filing: 1954-09-13
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Granted: 1960-12-27
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Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 Frank J Kowalski
- 👤 Scavone Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:08
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/22
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) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |