US2533713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum condenser
Assignee: Varian Medical Systems Inc
•
Filing: 1947-05-27
•
Granted: 1950-12-12
•
Expires: 1967-05-27
Abstract
No abstract record available.
Inventors
- 👤 Richard H Chamberlin
- 👤 Harold E Sorg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:15
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1333401A
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US1641687A
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US2036532A
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GB416457A
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US2192062A
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GB523869A
Cited
US2154542A
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US2291445A
Cited
US2324178A
Cited
US2339663A
Cited
US2415412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |