Patent US722302A successfully refreshed from Google Patents.
US722302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gas-regulating valve.
Assignee: HOLLEY HEAT REGULATOR Co
•
Filing: 1902-02-03
•
Granted: 1903-03-10
•
Expires: 1922-02-03
Abstract
No abstract record available.
Inventors
- 👤 Clarence M Holley
- 👤 Milton H Rix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:31
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; F; F23; F23N; F23N1/00; F23N1/005; F23N2235/00; F23N2235/12; F23N2235/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1906-03-09 | 1906-09-08 | 1907-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-03-09 | 1910-09-08 | 1911-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-03-09 | 1914-09-08 | 1915-03-10 | $7700.00 | Window Closed / Lapsed |