US2784318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass spectrometry
Assignee: Consolidated Electrodynamics Corp
•
Filing: 1945-06-13
•
Granted: 1957-03-05
•
Expires: 1965-06-13
Abstract
No abstract record available.
Inventors
- 👤 Harold W Washburn
- 👤 Clifford E Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:30
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/04; H01J49/0468; H01J49/10; H01J49/14; H01J49/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1955545A
Cited
US2101135A
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US2167630A
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US2167472A
Cited
US2179892A
Cited
US2331190A
Cited
US2355421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-04 | 1960-09-03 | 1961-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-04 | 1964-09-03 | 1965-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-04 | 1968-09-03 | 1969-03-05 | $7700.00 | Window Closed / Lapsed |