Patent US2959705A successfully refreshed from Google Patents.
US2959705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded tube and method of making the same
Assignee: American Optical Corp
•
Filing: 1952-09-18
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Granted: 1960-11-08
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Expires: 1972-09-18
Abstract
No abstract record available.
Inventors
- 👤 Harry A Downing
- 👤 Albert J Laliberte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:52
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US928224A
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US1128817A
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US1731797A
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US1802371A
Cited
GB473385A
Cited
US2214646A
Cited
US2424583A
Cited
US2421079A
Cited
US2464270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |