US2364798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating fluorescent lamps
Assignee: GTE Sylvania Inc
•
Filing: 1941-09-04
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Granted: 1944-12-12
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Expires: 1961-09-04
Abstract
No abstract record available.
Inventors
- 👤 August E Kulberg
- 👤 Charles L Albright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:39
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; Y; Y10; Y10S; Y10S118/00; Y10S118/10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87981
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) | 1947-12-12 | 1948-06-12 | 1948-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-12 | 1952-06-12 | 1952-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-12 | 1956-06-12 | 1956-12-12 | $7700.00 | Window Closed / Lapsed |