US2728386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas regulating device
Assignee: Milwaukee Gas Specialty Co
•
Filing: 1951-06-29
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Granted: 1955-12-27
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Expires: 1971-06-29
Abstract
No abstract record available.
Inventors
- 👤 John H Thorabery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:48
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; Y; Y10; Y10S; Y10S55/00; Y10S55/34; Y10T; Y10T137/00; Y10T137/1407; Y10T137/1516; Y10T137/794; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |