US543448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-pressure regulator
Assignee: —
•
Filing: —
•
Granted: 1895-07-23
•
Expires: 1912-07-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:57
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; G05D7/0133; F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7782; Y10T137/7784; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7824
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) | 1898-07-22 | 1899-01-21 | 1899-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1902-07-23 | 1903-01-22 | 1903-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1906-07-23 | 1907-01-22 | 1907-07-24 | $7700.00 | Window Closed / Lapsed |