US1357710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for automatically removing gases
Assignee: General Electric Co
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Filing: 1918-11-29
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Granted: 1920-11-02
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Expires: 1938-11-29
Abstract
No abstract record available.
Inventors
- 👤 Jr William K Kearsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:29
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; H01J9/385
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) | 1923-11-02 | 1924-05-03 | 1924-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-11-02 | 1928-05-03 | 1928-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-11-02 | 1932-05-03 | 1932-11-02 | $7700.00 | Window Closed / Lapsed |