Patent US2495917A successfully refreshed from Google Patents.
US2902574A
Expired / Lapsed
US
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Source for vapor deposition
Assignee: Raytheon Co
•
Filing: 1958-02-03
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Granted: 1959-09-01
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Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Richard A Gudmundsen
- 👤 John H Myer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:46
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/243; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2479541A
Cited
US2439983A
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US2447789A
Cited
US2793609A
Cited
US2730986A
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US2812411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |