Patent US2883649A successfully refreshed from Google Patents.
US2883649A
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US
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Galvanometer digitizer
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-07-26
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Granted: 1959-04-21
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Expires: 1975-07-26
Abstract
No abstract record available.
Inventors
- 👤 Jr William H King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:20
CPC Classifications
H; H03; H03M; H03M1/00; G; G01; G01R; G01R19/00; G01R19/04; H01; H01J; H01J49/00; H01J49/02; H01J49/022; H01J49/025; H03F; H03F2200/00; H03F2200/261; H03M1/12; H03M1/22
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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |