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Patent US2879739A successfully refreshed from Google Patents.
US2879739A
Expired / Lapsed
US
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Vaporized metal coating apparatus
Assignee: National Research Corp
•
Filing: 1955-01-13
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Granted: 1959-03-31
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Expires: 1975-01-13
Abstract
No abstract record available.
Inventors
- 👤 Wallace F Bugbee
- 👤 Robert M Boehme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:06
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/562; C23C14/24; C23C14/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1263858A
Cited
GB276390A
Cited
US2074281A
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US2273941A
Cited
US2255436A
Cited
US2382432A
Cited
US2354521A
Cited
US2665223A
Cited
US2702760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |