Patent US3396855A successfully refreshed from Google Patents.
US3396855A
Expired / Lapsed
US
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Apparatus for use in applying refractory coatings to refractory linings of small basic oxygen furnaces
Assignee: Quigley Co Inc
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Filing: 1965-10-01
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Granted: 1968-08-13
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Expires: 1985-10-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Demaison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:45
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/44; C21C5/441; C21C5/443; E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; F; F27; F27D; F27D1/00; F27D1/16; F27D1/1636; F27D1/1642
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US909063A
Cited
US1479507A
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US2011498A
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US2604358A
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US3043448A
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US3072268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |