US754468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety-valve.
Assignee: N LOMBARD IMPROVED GOVERNOR Co
•
Filing: 1903-07-11
•
Granted: 1904-03-15
•
Expires: 1923-07-11
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel Lombard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:56
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/04; F; F04; F04D; F04D13/00; F04D13/16; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K17/00; F16K17/02; F16K17/04; F16K17/06; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/7722; Y10T137/7837; Y10T137/7878; Y10T137/7904; Y10T137/7905
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) | 1907-03-15 | 1907-09-14 | 1908-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-03-15 | 1911-09-14 | 1912-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-03-15 | 1915-09-14 | 1916-03-15 | $7700.00 | Window Closed / Lapsed |