Patent US2999565A successfully refreshed from Google Patents.
Patent US2943749A successfully refreshed from Google Patents.
US2943749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple clamping of mount stems
Assignee: GTE Sylvania Inc
•
Filing: 1956-10-18
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Granted: 1960-07-05
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Expires: 1976-10-18
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Dotterer
- 👤 Donald J Kantner
- 👤 Howard P Sprankle
- 👤 Wilbert E Van Gorder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:22
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/46; H01J2893/00; H01J2893/0096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1594326A
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US1756851A
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US1909813A
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US2215844A
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US2274625A
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US2377364A
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US2442827A
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US2643780A
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US2588276A
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US2612917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |