US2607192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shut-off arrangement for mercury vapor systems
Assignee: General Electric Co
•
Filing: 1951-05-31
•
Granted: 1952-08-19
•
Expires: 1971-05-31
Abstract
No abstract record available.
Inventors
- 👤 Orla L Wood
- 👤 Harold N Hackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:03
CPC Classifications
F; F22; F22B; F22B3/00; F22B3/02; F01; F01K; F01K25/00; F01K25/08; F01K25/12; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4643; Y10T137/4658
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US906312A
Cited
US1436174A
Cited
FR598567A
Cited
GB376269A
Cited
DE705271C
Cited
US2121599A
Cited
US2196003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |