US2434905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating contacts for fluorescent starter switches
Assignee: Individual
•
Filing: 1944-07-08
•
Granted: 1948-01-27
•
Expires: 1964-07-08
Abstract
No abstract record available.
Inventors
- 👤 Harry M Burt
- 👤 Guy H Burt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:06
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/50; H01J5/54; H01J5/62; B; B21; B21D; B21D53/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190622185A
Cited
FR402947A
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GB123889A
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US1282567A
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US1427315A
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US1474473A
Cited
US1878640A
Cited
US1817854A
Cited
US1928911A
Cited
GB363574A
Cited
US2132002A
Cited
US2216201A
Cited
US2339174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |