Patent US2847756A successfully refreshed from Google Patents.
US2847756A
Expired / Lapsed
US
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Cladding assembly with internal cover plate
Assignee: Chicago Bridge and Iron Co
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Filing: 1955-04-19
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Granted: 1958-08-19
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Expires: 1975-04-19
Abstract
No abstract record available.
Inventors
- 👤 Jr George Stanley Sangdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:21
CPC Classifications
B; B23; B23K; B23K1/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T29/00; Y10T29/30; Y10T29/301; Y10T29/302; Y10T428/00; Y10T428/12; Y10T428/12347; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12639; Y10T428/12646; Y10T428/12653; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917; Y10T428/12924; Y10T428/12951; Y10T428/12958; Y10T428/12965
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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |