US2324455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp coating apparatus
Assignee: GTE Sylvania Inc
•
Filing: 1942-02-28
•
Granted: 1943-07-13
•
Expires: 1962-02-28
Abstract
No abstract record available.
Inventors
- 👤 Christopher P Keim
- 👤 Bronald J Vasalle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:33
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; Y; Y10; Y10S; Y10S118/00; Y10S118/10
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) | 1946-07-12 | 1947-01-11 | 1947-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-12 | 1951-01-11 | 1951-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-12 | 1955-01-11 | 1955-07-13 | $7700.00 | Window Closed / Lapsed |