Patent US35146A successfully refreshed from Google Patents.
US35146A
Expired / Lapsed
US
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Improvement in gas-regulators
Assignee: —
•
Filing: —
•
Granted: 1862-05-06
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Expires: 1879-05-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:06
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/02; Y; Y10; Y10S; Y10S292/00; Y10S292/53; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7825
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) | 1865-05-05 | 1865-11-04 | 1866-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1869-05-05 | 1869-11-04 | 1870-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1873-05-05 | 1873-11-04 | 1874-05-06 | $7700.00 | Window Closed / Lapsed |