Patent US1288916A successfully refreshed from Google Patents.
US1288916A
Expired / Lapsed
US
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Seal for electric apparatus.
Assignee: General Electric Vapor Lamp Co
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Filing: 1914-07-07
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Granted: 1918-12-24
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Expires: 1934-07-07
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Keyes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:08
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/32; C; C04; C04B; C04B2237/00; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1921-12-23 | 1922-06-24 | 1922-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-12-23 | 1926-06-24 | 1926-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-12-23 | 1930-06-24 | 1930-12-24 | $7700.00 | Window Closed / Lapsed |