Patent US3005893A successfully refreshed from Google Patents.
US3005893A
Expired / Lapsed
US
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Heating method and apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1959-01-19
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Granted: 1961-10-24
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Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Dixon Austin
- 👤 John F Weiland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:47
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/002; C; C21; C21D; C21D1/00; C21D1/34; C21D1/42; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22322E
Cited
GB385285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-23 | 1965-04-24 | 1965-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-23 | 1969-04-24 | 1969-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-23 | 1973-04-24 | 1973-10-24 | $7700.00 | Window Closed / Lapsed |