Patent US657440A successfully refreshed from Google Patents.
US657440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aspirator.
Assignee: Individual
•
Filing: 1900-07-02
•
Granted: 1900-09-04
•
Expires: 1920-07-02
Abstract
No abstract record available.
Inventors
- 👤 William J Mccaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:50
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/20; A61M5/204
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) | 1903-09-04 | 1904-03-05 | 1904-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-09-04 | 1908-03-05 | 1908-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-09-04 | 1912-03-05 | 1912-09-04 | $7700.00 | Window Closed / Lapsed |