Patent US2905285A successfully refreshed from Google Patents.
US2905285A
Expired / Lapsed
US
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Splice sleeves for connecting electrochannel joists
Assignee: CECO STEEL PRODUCTS CORP
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Filing: 1956-12-27
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Granted: 1959-09-22
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Expires: 1976-12-27
Abstract
No abstract record available.
Inventors
- 👤 Gerald G Greulich
- 👤 James F Rushing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:37
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0608; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7129
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1815447A
Cited
US2081197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |