US638046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable pneumatic stirrer.
Assignee: Individual
•
Filing: 1899-07-26
•
Granted: 1899-11-28
•
Expires: 1919-07-26
Abstract
No abstract record available.
Inventors
- 👤 William J M Dobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:12
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/236; B01F23/2361; B01F23/23611; B01F33/00; B01F33/50; B01F33/501; B01F33/5014; B01F33/40; B01F33/403; F; F25; F25C; F25C1/00; F25C1/18
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) | 1902-11-28 | 1903-05-30 | 1903-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-11-28 | 1907-05-30 | 1907-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-11-28 | 1911-05-30 | 1911-11-29 | $7700.00 | Window Closed / Lapsed |