US29446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved oil-feeder
Assignee: —
•
Filing: —
•
Granted: 1860-07-31
•
Expires: 1877-07-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:11
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/2018; B65D47/2056; B65D47/2062; A; A47; A47G; A47G19/00; A47G19/24; Y; Y10; Y10S; Y10S425/00; Y10S425/218
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) | 1863-07-31 | 1864-01-30 | 1864-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1867-07-31 | 1868-01-30 | 1868-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1871-07-31 | 1872-01-30 | 1872-07-31 | $7700.00 | Window Closed / Lapsed |