Patent US680722A successfully refreshed from Google Patents.
US680722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump.
Assignee: Individual
•
Filing: 1900-07-21
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Granted: 1901-08-20
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Expires: 1920-07-21
Abstract
No abstract record available.
Inventors
- 👤 Max Mauran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:36
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02; F04D7/06; F04D7/065
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) | 1904-08-19 | 1905-02-18 | 1905-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-08-19 | 1909-02-18 | 1909-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-08-19 | 1913-02-18 | 1913-08-20 | $7700.00 | Window Closed / Lapsed |