US3382843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum coating apparatus utilizing rotating sources
Assignee: Optical Coating Laboratory Inc
•
Filing: 1965-10-23
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Granted: 1968-05-14
•
Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Thelen
- 👤 Nils H Bergfelt
- 👤 Eugene A Eufusia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:18
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2351537A
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US2378476A
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US2469929A
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US2435997A
Cited
US2475854A
Cited
US2745773A
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US3131917A
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US3211128A
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US3263648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |