Patent US3618037A successfully refreshed from Google Patents.
US315667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary force-pump
Assignee: —
•
Filing: —
•
Granted: 1885-04-14
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Expires: 1902-04-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1253; Y; Y10; Y10T; Y10T24/00; Y10T24/47; Y10T24/4736
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) | 1888-04-13 | 1888-10-13 | 1889-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1892-04-13 | 1892-10-13 | 1893-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1896-04-13 | 1896-10-13 | 1897-04-14 | $7700.00 | Window Closed / Lapsed |