US2787510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of electrical devices having gas-filled sealed envelopes
Assignee: The General Electric Company PLC
•
Filing: 1953-11-16
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Granted: 1957-04-02
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Expires: 1973-11-16
Abstract
No abstract record available.
Inventors
- 👤 Breadner Robert Leonard
- 👤 Neill Trevor Ross
- 👤 Simms Charles Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:21
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; C; C09; C09B; C09B45/00; C09B45/38; C09B45/42; H01J5/00; H01J5/20; H01J5/22; H01J5/26; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0041; H01J2893/0043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2125316A
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US2259165A
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US2191346A
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US2152998A
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US2300931A
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US2451184A
Cited
US2427086A
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US2449676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |