US974997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-regulator.
Assignee: LEADER IRON WORKS
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Filing: 1910-03-26
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Granted: 1910-11-08
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Expires: 1930-03-26
Abstract
No abstract record available.
Inventors
- 👤 William A Shorb
- 👤 Guy R Rodgers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:44
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/16; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/313; Y10T137/3133; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7478
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) | 1913-11-07 | 1914-05-09 | 1914-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-11-07 | 1918-05-09 | 1918-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-11-07 | 1922-05-09 | 1922-11-08 | $7700.00 | Window Closed / Lapsed |