US3441784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ridged dielectric window with titanium suboxide solely on ridges
Assignee: Varian Medical Systems Inc
•
Filing: 1967-04-26
•
Granted: 1969-04-29
•
Expires: 1987-04-26
Abstract
No abstract record available.
Inventors
- 👤 Oskar Heil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:11
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2527918A
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US2415352A
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US3045532A
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US3252034A
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US3309302A
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US3330707A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |