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US1770012A
Expired / Lapsed
US
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Gas-supply-control system
Assignee: CSL Innovation Pty Ltd
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Filing: 1929-02-26
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Granted: 1930-07-08
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Expires: 1949-02-26
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:18
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; H01J9/395; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4621
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) | 1933-07-07 | 1934-01-06 | 1934-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-07-07 | 1938-01-06 | 1938-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-07-07 | 1942-01-06 | 1942-07-08 | $7700.00 | Window Closed / Lapsed |