Patent US3442775A successfully refreshed from Google Patents.
US3442775A
Expired / Lapsed
US
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Formation of coating on germanium bodies
Assignee: US Philips Corp
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Filing: 1965-10-22
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Granted: 1969-05-06
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 John George Wilkes
- 👤 Alan Rantell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:20
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/60; H10P14/68; C; C23; C23C; C23C8/00; C23C8/06; C23C8/08; C23C8/10; H10P14/63; H10P14/6302; H10P14/6304; H10P14/6306; H10P14/6308; H10P14/6324; H10P14/65; H10P14/6516; H10P14/6529; H10P14/6544; H10P95/00
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) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |