Patent US2575277A successfully refreshed from Google Patents.
Patent US73038A successfully refreshed from Google Patents.
US73038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
pollard
Assignee: —
•
Filing: —
•
Granted: 1868-01-07
•
Expires: 1885-01-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:08
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/16; F16K15/161; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7854; Y10T137/7857
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) | 1871-01-06 | 1871-07-08 | 1872-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1875-01-06 | 1875-07-08 | 1876-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1879-01-06 | 1879-07-08 | 1880-01-07 | $7700.00 | Window Closed / Lapsed |